Tuesday, April 21, 2009

UPDATE: Water Flow on Mars... Water Flow on South Pole


A spacecraft orbiting Mars has discovered compelling evidence that water has cascaded down the slopes of at least two Martian craters within the past seven years, forming mile-long gullies where the water has frozen instantly into brilliant ice, NASA scientists announced Wednesday.
The canyons, flood plains and deeply carved terrain all across the planet has long convinced researchers that millions of years ago Mars must have been warm and wet and easily capable of supporting life and within the past five years most scientists have talked about water flowing on the planet millions of years ago.

Now, however, recent images from the Mars Global Surveyor clearly show bright streaks on two crater slopes that the spacecraft’s cameras only caught within the past two years.

“These observations give the strongest evidence to date that water still flows occasionally on the surface of Mars,” said Michael Meyer, chief scientist for NASA’s Mars exploration program in a Washington briefing carried live over the Internet.

But neither Meyer nor the scientists responsible for the camera that took the extraordinarily high-resolution images could explain where the water came from: whether it burst from deep underground, came from the melting of unsuspected snow that had formed in the deep, cold shadows of the crater walls or came from other sources.

Mar on Mars Might be Like Life Form at Our Southern Pole




Researchers in have discovered ancient, extremophile life forms that survive with neither light nor oxygen underground in Antarctica.
From the surface, the McMurdo Dry Valleys of Eastern Antarctica appears to be one of the most desolate places on Earth. And indeed it is. Apart from a few glaciers, the land is ice-free. No animals live here, and what few plants are able to are simple planktonic forms. But recently, a team of researchers have discovered evidence of a thriving community of extremophile microbes thriving several hundred feet below the barren surface.
The evidence came in the form of an outpouring of meltwater from the base of Taylor Glacier, one of the outlet glaciers of the vast East Antarctic Ice Sheet. The samples were collected from a feature known aptly as Blood Falls, due to the rust-red coloration of briny effluent that occasionally issues from it. The source of this effluent is believed to be a 3 mile diameter, high-salinity “pool” (which doesn’t freeze due to the salt content) buried inland and deep under the glacier.
The results of sample analyses revealed an abundance of microbial life similar to some present day oceanic and land microbes, but also quite different in key ways-they are capable of reproducing in the complete absence of either light or oxygen. These microbes are in some ways closer to Archaea, a branch of simple unicellular organisms believed to be amongst the most ancient microbial forms to appear on earth.
READ MORE AT : http://ecoworldly.com/2009/04/20/ancient-microbes-found-thriving-under-antarctic-glacier/




A spacecraft orbiting Mars has discovered compelling evidence that water has cascaded down the slopes of at least two Martian craters within the past seven years, forming mile-long gullies where the water has frozen instantly into brilliant ice, NASA scientists announced Wednesday.
The canyons, flood plains and deeply carved terrain all across the planet has long convinced researchers that millions of years ago Mars must have been warm and wet and easily capable of supporting life and within the past five years most scientists have talked about water flowing on the planet millions of years ago.
Now, however, recent images from the Mars Global Surveyor clearly show bright streaks on two crater slopes that the spacecraft’s cameras only caught within the past two years.
“These observations give the strongest evidence to date that water still flows occasionally on the surface of Mars,” said Michael Meyer, chief scientist for NASA’s Mars exploration program in a Washington briefing carried live over the Internet.
But neither Meyer nor the scientists responsible for the camera that took the extraordinarily high-resolution images could explain where the water came from: whether it burst from deep underground, came from the melting of unsuspected snow that had formed in the deep, cold shadows of the crater walls or came from other sources.



Tuesday, April 14, 2009

Have Space Suit (used) will Travel...





On October 4, 1957, the Soviet Union became the first country to launch anything into space. The event set off a space race that eventually landed humans on the moon and encircled the Earth with satellites. But a second, smaller race began at the same time. A small, dedicated group of fans began to find, collect and authenticate the physical objects associated with man's out-of-this-world journeys.
http://blog.wired.com/wiredscience/2009/04/spaceauction.html
Now there is a bustling business in the detritus of space flight.
Several auctioneers host major sales during the spring where hundreds of pieces can be sold for between a few hundred bucks and a few hundred thousand. Starting April 16, Regency-Superior will host a four-day auction featuring an ultra-rare spacesuit used for testing in the Gemini program (see video) along with dozens of other rare items, photographs and space hardware.