Declaring “this is not your father’s moon,” NASA scientists said today that last month’s mission to punch a hole in the lunar surface found significant amounts of water in a permanently shadowed crater at the moon’s south pole.

“The moon is alive,” declared Anthony Colaprete, the chief scientist for the Lunar Crater Observation and Sensing Satellite mission.

According to Colaprete and other researchers, the mission measured about 25 gallons of water in the form of vapor and ice after punching a hole about 100 feet across in the surface of the moon. While that’s not enough to fill a bathtub, it could be evidence there is enough water at the poles for future astronauts to use to live off the land. And it’s far more than anyone expected following the Apollo missions of the 1960s and ’70s, which pronounced the moon a dead, forbidding world.

“This is painting a surprising new picture of the moon,” said Greg Delory, a space scientist at UC Berkeley. Read the full story

Although no one noticed at the time, the Earth was almost hit by an asteroid last Friday.

The previously undiscovered asteroid came within 8,700 miles of Earth but astronomers noticed it only 15 hours before it made its closest approach.

Its orbit brought it 30 times nearer than the Moon, which is 250,000 miles away.

Read the full story

Vint Cerf, Google’s internet evangelist, has unveiled a new protocol intended to power an interplanetary internet.

The Delay-Tolerant Networking (DTN) protocol emerged from work first started in 1998 in partnership with Nasa’s Jet Propulsion Laboratory. The initial goal was to modify the ubiquitous Transmission Control Protocol (TCP) to facilitate robust communications between celestial bodies and satellites.

Cerf and his team were eventually forced to acknowledge (ACK?) that TCP simply couldn’t cut the mustard, with massive delay and data loss caused by celestial motion rendering TCP useless. Read the full story

The strongest limit on the number of possible universes is the human ability to distinguish between different universes. Credit: Linde and Vanchurin.

In a new study, Stanford physicists Andrei Linde and Vitaly Vanchurin have calculated the number of all possible universes, coming up with an answer of 10^10^16. If that number sounds large, the scientists explain that it would have been even more humongous, except that we observers are limited in our ability to distinguish more universes; otherwise, there could be as many as 10^10^10^7 universes.

To work these numbers out, Linde and Vanchurin looked back to the time shortly after the Big Bang, which they view as a quantum process that generated lots of quantum fluctuations. Then during the period of inflation, the universe grew rapidly and these quantum fluctuations were “frozen” into classical perturbations in distinct regions. Today, each of these regions could be a different universe, having its own distinct laws of low energy physics.

By analyzing the mechanism (called “slow roll inflation“) that initially generated the quantum fluctuations, the scientists could estimate the number of resulting universes at 10^10^10^7 (a number which is dependent on the model they used). However, this number is limited by other factors, specifically by the limits of the human brain. Since the total amount of information that one individual can absorb in a lifetime is about 10^16 bits, which is equivalent to 10^10^16 configurations, this means that a human brain couldn’t distinguish more than 10^10^16 universes.

Requiring that the human brain must be able to count the number of parallel universes may seem inappropriate, if not arrogant, but Linde and Vanchurin explain that dealing with the quantum world is different than our everyday lives in which quantum effects can be safely ignored. A crucial part of their calculation here is an investigation of quantum effects on supergalactic scales. In this kind of scenario, the state of the multiverse and observations made by an observer are correlated (similar to the Schrodinger cat experiment, where the outcome can be determined only after it is registered by a classical observer).

“When we analyze the probability of the existence of a universe of a given type, we should be talking about a consistent pair: the universe and an observer who makes the rest of the universe ‘alive’ and the wave function of the rest of the universe time-dependent,” the scientists write.

As the scientists explain, the calculation of the number of universes is an important step toward an even larger goal: to find the probability of living in a universe with a particular set of properties. What are the chances that we live in a world in which the laws of physics are these laws that we currently observe? Answering this question requires finding probabilities that depend on knowing about other universes, among many other challenges.

http://www.physorg.com/

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Nov. skywatch: Leonid meteor shower, Jupiter

November brings sky watchers a cornucopia of astronomical delights. Read the full story

By Dan Eden for viewzone.

They have always been there. People noticed them before. But no one could remember who made them — or why? Until just recently, no one even knew how many there were. Now they are everywhere — thousands — no, hundreds of thousands of them! And the story they tell is the most important story of humanity. But it’s one we might not be prepared to hear.

Something amazing has been discovered in an area of South Africa, about 150 miles inland, west of the port of Maputo. It is the remains of a huge metropolis that measures, in conservative estimates, about 1500 square miles. It’s part of an even larger community that is about 10,000 square miles and appears to have been constructed — are you ready — from 160,000 to 200,000 BCE!

The image [top of page] is a close-up view of just a few hundred meters of the landscape taken from google-earth. The region is somewhat remote and the “circles” have often been encountered by local farmers who assumed they were made by some indigenous people in the past. But, oddly, no one ever bothered to inquire about who could have made them or how old they were.

This changed when researcher and author, Michael Tellinger, teamed up with Johan Heine, a local fireman and pilot who had been looking at these ruins from his years flying over the region. Heine had the unique advantage to see the number and extent of these strange stone foundations and knew that their significance was not being appreciated.

“When Johan first introduced me to the ancient stone ruins of southern Africa, I had no idea of the incredible discoveries we would make in the year or two that followed. The photographs, artifacts and evidence we have accumulated points unquestionably to a lost and never-before-seen civilization that predates all others — not by just a few hundred years, or a few thousand years… but many thousands of years. These discoveries are so staggering that they will not be easily digested by the mainstream historical and archaeological fraternity, as we have already experienced. It will require a complete paradigm shift in how we view our human history. “ — Tellinger

Where it was found:

The area is significant for one striking thing — gold. “The thousands of ancient gold mines discovered over the past 500 years, points to a vanished civilization that lived and dug for gold in this part of the world for thousands of years,” says Tellinger. “And if this is in fact the cradle of humankind, we may be looking at the activities of the oldest civilization on Earth.”

Did gold play some role in the dense population that once lived here? The site is just about 150 miles from an excellent port where maritime trade could have helped to support such a large population. But remember — we’re talking almost 200,000 years ago!

The individual ruins [see below] mostly consist of stone circles. Most have been buried in the sand and are only observable by satellite or aircraft. Some have been exposed when the changing climate has blown the sand away, revealing the walls and foundations.

“I see myself as a fairly open-minded chap but I will admit that it took me well over a year for the penny to drop, and for me to realise that we are actually dealing with the oldest structures ever built by humans on Earth. The main reason for this is that we have been taught that nothing of significance has ever come from southern Africa. That the powerful civilizations all emerged in Sumeria and Egypt and other places. We are told that until the settlement of the BANTU people from the north, which was supposed to have started sometime in the 12th century AD, this part of the world was filled by hunter gatherers and so-called Bushmen, who did not make any major contributions in technology or civilization.” — Tellinger

A Rich and Diverse History

When explorers first encountered these ruins, they assumed that they were cattle corals made by nomadic tribes, like the Bantu people, as they moved south and settled the land from around the 13th century. There was no previous historical record of any older civilization capable of building such a densly populated community. Little effort was made to investigate the site because the scope of the ruins was not fully known.

Over the past 20 years, people like Cyril Hromnik, Richard Wade, Johan Heine and a handful of others have discovered that these stone structures are not what the seem to be. In fact these are now believed to be the remains of ancient temples and astronomical observatories of lost ancient civilizations that stretch back for many thousands of years.

These circular ruins are spread over a huge area. They can only truly be appreciated from the air or through modern sattelite images. Many of them have almost completely eroded or have been covered by the movement of soil from farming and the weather. Some have survived well enough to reveal their great size [see above] with some original walls standing almost 5 feet high and over a meter wide in places.

Looking at the entire metropolis, it becomes obvious that this was a well planned community, developed by a highly evolved civilization. The number of ancient gold mines suggests the reason for the community being in this location. We find roads — some extending a hundred miles — that connected the community and terraced agriculture, closely resembling those found in the Inca settlements in Peru.

But one question begs for an answer — how could this be achieved by humans 200,000 years ago?

How the Site was dated

Once the ruins were examined, the researchers were anxious to place the lost civilization in a historical perspective. The rocks were covered with a patina that looked very old but there were no items sufficient for carbon-14 dating. It was then that a chance discovery revealed the age of the site, and sent a chill down the spine of archaeologists and historians!

Dating the site:

Finding the remains of a large community, with as many as 200,000 people living and working together, was a major discovery in itself. But dating the site was a problem. The heavy patina on the rock walls suggested the structures were extremely old, but the science of dating patina is just being developed and is still controversial. Carbon-14 dating of such things as burnt wood introduces the possibility that the specimens could be from recent grass fires which are common in the area. The breakthrough came quite unexpectedly. As Tellinger describes it:

“Johan Heine discovered Adam’s Calendar in 2003, quite by accident. He was on route to find one of his pilots who crashed his plane on the edge of the cliff. Next to the crash site Johan noticed a very strange arrangement of large stones sticking out of the ground. While rescuing the injured pilot from about 20 metres down the side of the cliff, Johan walked over to the monoliths and immediately realised that they were aligned to the cardinal points of Earth — north, south, east and west. There were at least 3 monoliths aligned towards the sunrise, but on the west side of the aligned monoliths there was a mysterious hole in the ground — something was missing.After weeks and months of measuring and observations, Johan concluded that it was perfectly aligned with the rise and fall of the Sun. He determined the solstices and the equinoxes. But the mysterious hole in the ground remained a big puzzle. One day, while contemplating the reason for the hole, the local horse trail expert, Christo, came riding by. He quickly explained to Johan that there was a strange shaped stone which had been removed from the spot some time ago. Apparently it stood somewhere near the entrance to the nature reserve.

After an extensive search, Johan found the anthropomorphic (humanoid shape) stone. It was intact and proudly placed with a plaque stuck to it. It had been used by the Blue Swallow foundation to commemorate the opening of the Blue Swallow reserve in 1994. The irony is that it was removed from the most important ancient site found to date and mysteriously returned to the reserve — for slightly different reasons.

The exact location of the calendar is listed on www.makomati.com. The first calculations of the age of the calendar were made based on the rise of Orion, a constellation known for its three bright stars forming the “belt” of the mythical hunter.

The Earth wobbles on its axis and so the stars and constellations change their angle of presentation in the night sky on a cyclical basis. This rotation, called the precession completes a cycle about every 26,000 years. By determining when the three stars of Orion’s belt were positioned flat (horizontal) against the horizon, we can estimate the time when the three stones in the calendar were in alignment with these conspicuous stars.

The first rough calculation was at least 25,000 years ago. But new and more precise measurements kept increasing the age. The next calculation was presented by a master archaeoastronomer who wishes to remain anonymous for fear of ridicule by the academic fraternity. His calculation was also based on the rise of Orion and suggested an age of at least 75,000 years. The most recent and most acurate calculation, done in June 2009, suggests an age of at least 160,000 years, based on the rise of Orion — flat on the horizon — but also on the erosion of dolerite stones found at the site.

Some pieces of the marker stones had been broken off and sat on the ground, exposed to natural erosion. When the pieces were put back together about 3 cm of stone had already been worn away. These calculation helped assess the age of the site by calculating the erosion rate of the dolerite.

Who made the metropolis? Why?

It would seem that humans have always valued gold. It is even mentioned in the Bible, describing the Garden of Eden’s rivers:Genesis 2:11 — The name of the first [river] is Pishon; it flows around the whole land of Havilah, where there is gold.

South Africa is known as the largest gold producing country of the world. The largest gold producing area of the world is Witwatersrand, the same region where the ancient metropolis is found. In fact nearby Johannesburg, one of the best known cities of South Africa, is also named “Egoli” which means the city of gold.

It seems highly probable that the ancient metropolis was established because of its proximity to the largest supply of gold on the planet. But why would ancient people work so hard to mine gold? You can’t eat it. It’s too soft to use for tool making. It isn’t really useful for anything except ornaments and its physical beauty is on a par with other metals like copper or silver. Exactly why was gold so important to early homo sapiens?

To explore the answer we need to look at the period of history in question — 160,000 to 200,000 years BCE — and learn what was happening on planet Earth.

What were humans like 160,000 years ago?Modern humans, homo sapiens, can trace our ancestry back through time to a point where our species evolved from other, more primitive, hominids. Scientists do not understand why this new type of human suddenly appeared, or how the change happened, but we can trace our genes back to a single female that is known as “Mitochondrial Eve”.

Mitochondrial Eve (mt-mrca) [Right: An artist's rendition] is the name given by researchers to the woman who is defined as the matrilineal most recent common ancestor (MRCA) for all currently living humans. Passed down from mother to offspring, all mitochondrial DNA (mtDNA) in every living person is derived from this one female individual. Mitochondrial Eve is the female counterpart of Y-chromosomal Adam, the patrilineal most recent common ancestor, although they lived at different times.

Mitochondrial Eve is believed to have lived between 150,000 to 250,000 years BP, probably in East Africa, in the region of Tanzania and areas to the immediate south and west. Scientists speculate that she lived in a population of between perhaps 4000 to 5000 females capable of producing offspring at any given time. If other females had offspring with the evolutionary changes to their DNA we have no record of their survival. It appears that we are all descendants of this one human female.

Mitochondrial Eve would have been roughly contemporary with humans whose fossils have been found in Ethiopia near the Omo River and at Hertho. Mitochondrial Eve lived significantly earlier than the out of Africa migration which might have occurred some 60,000 to 95,000 years ago.

[right] The region in Africa where one can find the greatest level of mitochondrial diversity (green) and the region anthropologists postulated the most ancient division in the human population began to occur (light brown). The ancient metropolis in located in this latter (brown) region which also corresponds to the estimated age when the genetic changes suddenly happened.

Could this be a coincidence?

Ancient Sumerian history describes the ancient metropolis and its inhabitants!I’ll be honest with you. This next part of the story is difficult to write. It’s so shocking that the average person will not want to believe it. If you are like me, you’ll want to do the research yourself, then allow some time for the facts to settle in your mind.

We are often made to believe that the Egyptians — the Pharoahs and pyramids — are where our known history begins. The oldest dynasties go back some 3200 years BP. That’s a long time ago. But the Sumerian civilization, in what is now Iraq, is much older. What’s more, we have translated many of their history tablets, written in cuneiform and earlier scripts so we know a lot about their history and legends.

The seal image [above] depicts the legend of the “Great Flood” which consumed mankind. Many Sumerian legends are strikingly similar to Genesis. Like Genesis, the Sumerian legend, Atrahasis, tells the story of the creation of modern humans — not by a loving God — but by beings from another planet who needed “slave workers” to help them mine gold on their extra-planetary expedition!

Read More:

http://www.viewzone.com/adamscalendar33.html

Russia’s space agency is planning to build a new spaceship with a nuclear engine, its chief said Wednesday.

Anatoly Perminov told a government meeting Wednesday that the preliminary design could be ready by 2012. He said it will then take nine more years and 17 billion rubles ($600 million, 400 million euros) to build the ship.

“The implementation of this project will allow us to reach a new technological level surpassing foreign developments,” Perminov told a meeting which focused on communications and space technologies.

Russian President Dmitry Medvedev urged the Cabinet to consider providing the necessary funding.

“It’s a very serious project,” Medvedev said. “We need to find the money.”

Perminov’s ambitious statement contrasted with the current state of the Russian space program, and sounded more like a plea for extra government funds than a detailed proposal.

Russia is using 40-year old Soyuz booster rockets and capsules to send crews to the International Space Station. Development of a replacement rocket and a prospective spaceship with a conventional propellant has dragged on with no end in sight.

Perminov described the proposed spaceship as a “unique breakthrough project,” but offered few details.

He said that the ship will have a megawatt-class nuclear reactor, as opposed to small nuclear reactors that powered Soviet satellites. The Cold-War era Soviet spy satellites had reactors which produced just a few kilowatts of power and had a lifespan of just about a year.

Perminov didn’t say what the new spaceship will be used for.

He and other officials have said that Russia needs a new spaceship to replace the old Soyuz for missions in Earth orbit, but they only have talked about a ship powered by a conventional rocket fuel so far.

Russian space agency also has mulled over prospective future missions to the moon and Mars, but hasn’t yet set a specific time frame yet.

http://www.askmen.com/

If you found your grandmother’s diary, tattered and dust covered, up in the attic, would you read it? Of course you would. Granny was a pistol! Brush off the dust, open up the little book, and foray into her lively and interesting past.

Dust cloaks some fascinating tales in other places, too. NASA scientists will soon brush the dust off some Martian rocks that are practically bursting their seams to give their lively account of the red planet’s past. The Mars Science Lab — aptly named “Curiosity” — is heading up there in 2011 to read the diary of Mars.

The small, car-sized rover will ramble about on the rocky surface, gizmos at full tilt, not only brushing dust off rocks but also vaporizing them with a laser beam, gathering samples to analyze on the spot, taking high resolution photographs, and more.

“Curiosity will be prospecting for organic molecules, the chemical building blocks of life,” says Joy Crisp of NASA’s Jet Propulsion Laboratory. “We want to find out whether Mars’ environment was, or still is, capable of harboring life.”

“To answer the question ‘Is there life on Mars?’ the most reasonable and productive approach is to look for organic compounds, which could be from life past or present, or from meteorites,” explains Michael Meyer of NASA headquarters. “If you find anything, you know you’re in a region that could preserve evidence of life, if there was any. We have maps from our orbiters, but we don’t know which of the promising looking regions actually contains anything, much less the mother lode.”

“The rock record is of particular interest,” says Crisp. “It has a record from billions of years ago and can answer questions like ‘Where and for how long might Mars have been habitable?’ ‘Was it cold or warm there in the past?’ ‘Was the water there acidic or salty?’”

Curiosity will be the first red planet rover since Spirit and Opportunity. Though it would be hard to match the twins’ toughness, Curiosity will have a much greater range, more instruments, and a bigger, stronger robotic arm. It will be nuclear powered instead of solar, so there will be no worries about dust on solar panels causing energy supplies to plummet. It will have much more power, more consistently.

“Curiosity will even land in a new fashion,” says Crisp. “Spirit and Opportunity were sitting on top of a lander that hit on the surface and bounced, protected by airbags, before coming to rest and opening up. They then had to drive off the top of the lander. A descent stage called Sky Crane will gently lower Curiosity (no airbags needed) via cables, which will be cut once the rover’s wheels set down.

Right: An artist’s concept of Curiosity’s descent to Mars. [larger image] [more]

Meyer adds, “The most important difference is that Spirit and Opportunity aren’t analytical labs – they are more for observing. This newest rover will be performing a more comprehensive study of the Martian environment.”

Remote sensing instruments located on Curiosity’s mast will scout around for promising targets and perform some long-distance analysis before the vehicle moves in for a closer look.

“Curiosity will have a laser on its mast that can take aim at a rock and vaporize a small spot on it,” says Crisp. “This produces a plasma cloud that tells us about that rock’s chemistry. We’ll look at the light reflected off the cloud to characterize rocks and soils from up to 9 meters away. We’ll be able to classify minerals, ices, and organic molecules without having to drive as much.”

The mast also sports a high-resolution camera called, naturally, Mastcam. It will observe, photograph, and videotape geological structures and features, like craters, gullies, and dunes.

The rover’s robotic arm wields its own unique instruments. APXS, the Alpha Particle X-Ray Spectrometer, will measure the abundance of chemical elements in the dust, soils, rocks, and processed samples. MAHLI, the Mars Hand Lens Imager, will return color images like those of typical digital cameras and act like a geologist’s magnifying lens. Its images can be used to examine the structure and texture of rocks, dust, and frost at the micrometer to centimeter scale.

One laboratory instrument inside the rover’s body will explore the red planet by “sniffing” the air, bird-dog style. SAM, short for Sample Analysis at Mars, has vents that open to the atmosphere to determine where to take samples, for example if it detects methane in the area.

“That’s important because methane can be released by microbes,” explains Crisp, “or by liquid water reacting with rock at depths under the surface. Water ‘down under’ could be a niche for subterranean life. SAM can also be used to sniff the gases released after baking a rock or soil sample in its oven.”

In addition, Curiosity will carry instruments for observing Martian weather and measuring cosmic radiation bombarding the planet’s surface.

“This rover is intrinsically spectacular in terms of what the mission will do,” says Meyer. “It’s a keystone for the future. It sets the stage for understanding whether organics are preserved on Mars and will tell us what we need to use to find out.”

Now – where’s that diary?

http://science.nasa.gov/

Nigeria’s space agency is no joke. It has launched satellites and aims to put Africans into space.

LONDON, U.K. — Recently I received an email labeled “Strictly Confidential” from Dr. Bakare Tunde, who said he was astronautics project manager at Nigeria’s space agency. He also told me he was the cousin of the first African in space, Air Force Major Abacha Tunde, and that this poor intrepid astronaut had been stranded on a secret Soviet military station ever since the Soviet Union dissolved in 1990.

“He is in good humor,” read the email, “but wants to come home.” No wonder he was keen to hurtle back earthwards, Tunde told me his cousin had accumulated almost $15 million in pay. For the price of my bank account details, I could claim 20 percent and fly the brave chap home to collect my portion of the earnings and transfer the rest on to him like the good space-supporter that I was.

This classic 419 scam is indeed far-fetched but one aspect of it is true.

Nigeria really does have a space agency. The west African nation’s National Space Research and Development Agency is already celebrating its 10th anniversary. And as America and Europe’s space agencies set their sights on joint exploration of Mars, Nigeria has big plans of its own: It wants to send a Nigerian up into space in 2015, making Nigeria home to the first black African astronaut.

Sitting across from Gerald Okeke, it’s hard to fathom that the quietly spoken fellow might one day fly beyond the earth’s atmosphere. Okeke, 28, is one of 27 Nigerian engineers being trained how to design and build an earth observation satellite in the U.K., at private British company Surrey Satellites Technology in Guildford, southeast of London. We are sitting in the canteen of the spacecraft-mad company, from whose ceilings dangle silver starburst lights and whose rubbish bins are shaped like shiny rockets.

“There is much to learn but we are coping,” says Okeke, whose father was also a scientist. “It’s a big challenge. Talking about space in Africa is kind of a new field but it’s a very big opportunity for us to explore.”

He says it would be an honor to be picked as Africa’s first black space sailor — who must be aged 27 to 37 at the time of lift-off and whose selection will begin next year ahead of four years of training. Okeke has already spent several years studying in the U.K., which he says is challenging. “The weather can be trouble and we try to cope with the food even though it’s not what we eat in Nigeria,” said Okeke.

His is not the only sacrifice in an expensive and widely questioned mission. Nigeria spends $20 million a year on its space program, in a country in which for every thousand children born, 137 will die before they are five years old. A collapse in the value of Nigeria’s naira currency — in part attributable to the global downturn — has meant the costs of its payments in U.S. dollars have also rocketed by a third.

“Even in the U.S. some people are opposed to the space program so we are not surprised this happens here,” says Seidu Onailo Mohammed, CEO of the Nigerian space agency. “But we want to assess the problems that have devastated this land. We need to monitor our environment, assess problems of flooding, deforestation — all this can only be done if we have a viable space program. Plus after so many years it’s a good idea to think of an astronaut.”

The country jetted up a $13 million earth observation satellite, made in the U.K. and launched from Russia, in 2003. A much more expensive communications satellite, costing hundreds of millions of dollars, was launched from China in 2007. It failed within 18 months but a replacement is due to be propelled into space by 2011, paid for by insurance.

But still the Nigerian agency wants more money. The government believes it will all pay off in the end.

Already the earth observation satellite has taken some pretty impressive snaps including pictures of poppy growing in Afghanistan, the state of cyclone damage after Myanmar’s authorities restricted access to international rescue teams in 2008 and, closer to home, identifying the whereabouts of illegal tankers parking far out at sea to steal Nigeria’s oil supplies.

Nigeria has managed to sell about 1,000 of its satellite images and hopes over the course of each satellite’s lifetime such data sales will cover the costs of manufacture and operation.

“We are bringing down space to apply it on the ground,” says Francis Chizea, Director of the Nigerian space agency. “It’s going to be very very important for the economy. We can map the wetlands and advise on areas very good for rice production; monitor desertification in the north; find the best place to locate dams; assess the environmental impact of oil drilling; locate oil spills and track movements on the border.”

It’s all been made possible by a new approach to space science that has let developing nations in on the extra-terrestrial act.

“We’ve been able to shrink a satellite from a double-decker bus down to the size of a TV set,” says Martin Sweeting, the British founder of Surrey Satellites Technology, a radio fanatic as a child who decided space shouldn’t be the privilege of the rich nations. “It’s now possible for an African country to have its own satellite for $10 to $15 million. It can yield real benefits at the right price.”

South Africa, Algeria and Egypt are all marshaling their own satellite facilities, so there’s no question Africa’s scientists are reaching for the stars.

http://www.globalpost.com/

A new report appearing in The Journal of Leukocyte Biology argues that human missions to Mars, as well as all other long-term space flights might be compromised by microbial hitchhikers, such as bacteria. That’s because long-term space travel packs a one-two punch to astronauts: first it appears to weaken their immune systems; and second, it increases the virulence and growth of microbes.

This combination of factors makes it vital for scientists to find tools that can help people cope with these microscopic hitchhikers before they lead to disease, especially since astronauts will not have the ability to return home to a hospital.

“When people think of space travel, often the vast distances are what come to mind first,” said Jean-Pol Frippiat, one of the report’s co-authors from Nancy-University in France, “but even after we figure out a way to cover these distances in a reasonable amount of time, we still need to figure out how astronauts are going to overcome disease and sickness.”

Frippiat and colleagues based their conclusions on studies showing that immune systems of both people and animals in space flight conditions are significantly weaker than their grounded counterparts. They also reviewed studies that examined the effects of space flight conditions and altered gravity on virulence and growth of common pathogens such as Salmonella, E. coli and Staphylococcus. These studies show that these bacteria reproduce more rapidly in space flight conditions, leading to increased risk of contamination, colonization and serious infection.

“As clearly outlined by the researchers, we are unlikely to remain healthy when leaving earth for prolonged periods,” said Luis Montaner, Editor-in-Chief of The Journal of Leukocyte Biology. “Unfortunately, because spacecraft technology is way ahead of our understanding of how to maintain human health, disease-free survival after reaching Mars or establishing a colony on the Moon may be problematic.”

Journal reference:

1. Gueguinou et al. Could spaceflight-associated immune system weakening preclude the expansion of human presence beyond Earth’s orbit? Journal of Leukocyte Biology, 2009; 86 (5): 1027 DOI: 10.1189/jlb.0309167

Adapted from materials provided by Federation of American Societies for Experimental Biology, via EurekAlert!, a service of AAAS.

http://www.sciencedaily.com/

A deep hole on the moon that could open into a vast underground tunnel has been found for the first time. The discovery strengthens evidence for subsurface, lava-carved channels that could shield future human colonists from space radiation and other hazards.

The moon seems to possess long, winding tunnels called lava tubes that are similar to structures seen on Earth. They are created when the top of a stream of molten rock solidifies and the lava inside drains away, leaving a hollow tube of rock.

Their existence on the moon is hinted at based on observations of sinuous rilles – long, winding depressions carved into the lunar surface by the flow of lava. Some sections of the rilles have collapsed, suggesting that hollow lava tubes hide beneath at least some of the rilles.

But until now, no one has found an opening into what appears to be an intact tube. “There’s sort of a chicken-and-egg problem,” says Carolyn van der Bogert of the University of Münster in Germany. “If it’s intact, you can’t see it.”

Finding a hole in a rille could suggest that an intact tube lies beneath. So a group led by Junichi Haruyama of the Japanese Aerospace Exploration Agency searched for these “skylights” in images taken by Japan’s Kaguya spacecraft, which orbited the moon for almost two years before ending its mission in June.

Deep cave

The team found the first candidate skylight in a volcanic area on the moon’s near side called Marius Hills. “This is the first time that anybody’s actually identified a skylight in a possible lava tube” on the moon, van der Bogert, who helped analyse the feature, told New Scientist.

The hole measures 65 metres across, and based on images taken at a variety of sun angles, the the hole is thought to extend down at least 80 metres. It sits in the middle of a rille, suggesting the hole leads into a lava tube as wide as 370 metres across.

It is not clear exactly how the hole formed. A meteorite impact, moonquakes, or pressure created by gravitational tugs from the Earth could be to blame. Alternatively, part of the lava tube’s ceiling could have been pulled off as lava in the tube drained away billions of years ago.

Radiation shield

Finding such an opening could be a boon for possible human exploration of the moon (see What NASA’s return to the moon may look like).

Since the tubes may be hundreds of metres wide, they could provide plenty of space for an underground lunar outpost. The tubes’ ceilings could protect astronauts from space radiation, meteoroid impacts and wild temperature fluctuations (see Can high-tech cavemen live on the moon?).

“I think it’s really exciting,” says Penny Boston of the New Mexico Institute of Mining and Technology in Socorro. “Basalt is an extremely good material for radiation protection. It’s free real estate ready to be exploited and modified for human use.”

Blocked passage?

But even if astronauts were to rappel into the hole, they might not be able to travel far into the tube it appears to lead into. “I would bet a lot of money that there’s a tube there, but I would not bet nearly so much that we could gain access to the tube,” says Ray Hawke of the University of Hawaii at Manoa, who has also hunted for lunar lava tubes.

Rubble or solidified lava might block up the tube. “It could be closed up and inaccessible,” Hawke told New Scientist.

NASA’s Lunar Reconnaissance Orbiter (LRO), which should be able to snap images of the area that are at least 10 times as sharp, could help reveal more about the hole. And more lava tube openings may be found.

The Kaguya team is still combing over images of other areas in search of additional skylights. And Hawke says a proposal is in the works to use LRO’s main camera to snap oblique shots of the lunar surface. This could help reveal cave entrances that are not visible in a bird’s-eye view.

Journal reference: Geophysical Research Letters (in press)

http://www.newscientist.com/

2009-10-24

A deep hole on the moon that could open into a vast underground tunnel has been found for the first time. The discovery strengthens evidence for subsurface, lava-carved channels that could shield future human colonists from space radiation and other hazards.

The moon seems to possess long, winding tunnels called lava tubes that are similar to structures seen on Earth. They are created when the top of a stream of molten rock solidifies and the lava inside drains away, leaving a hollow tube of rock. Read the full story

Meteor shower tonight! Orionid meteor shower begins at 1 am

Meteor shower tonight? Yep, peak viewing times for the Orionid meteor shower begins tonight (er… tomorrow) at 1 am.

Are you ready for some meteors? Tuesday night party! Well, that’s how the song might go if Hank Williams Jr. was singing the pre-game to tonight’s Orionid meteor shower.

But as far as we can tell, Williams isn’t adding this to his Monday Night Football schedule and we couldn’t find the pre-game party anyway.

But that doesn’t mean the show’s not going to go on. Anything but. Tonight and tomorrow morning are the peak viewing times of the Orionid meteor shower. Read the full story

Astronomers have announced a haul of planets found beyond our Solar System.

The 32 “exoplanets” ranged in size from five times the mass of Earth to 5-10 times the mass of Jupiter, the researchers said.

They were found using a very sensitive instrument on a 3.6m telescope at the European Southern Observatory’s La Silla facility in Chile. Read the full story

“This latest video of people providing their personal experiences for us while at the Bay Area UFO expo begins with Jim Marrs relating his experience with researching UFOs, and includes two people with very different stories. The second person relates an brief encounter with an unusual object while hiking in the High Chaparral area, and our third person provides his experience learning about a coming “galactic tsunami” in 2012 while taking part in a shamanic ceremony.”

http://www.abovetopsecret.com/

Special Thanks to mcrom901 for providing this information on http://www.abovetopsecret.com/

The Disclosure Project
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UFO – The Greatest Story Ever Denied
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SECRET SPACE (Vol-1) Illuminati Conquest of Space
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SECRET SPACE (Vol-2) Alien Invasion
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The much-delayed and maligned Large Hadron Collider has been hit by its most outlandish claim to date – it is being sabotaged by its own future.

Forget the far-fetched belief that it will create a black hole, two distinguished physicists have gone even further claiming nature itself is stopping the troubled £4.4billion project from getting off the ground. Read the full story