Methane May Point to Life on Mars
Last Updated on 01 May 2009 Written by InfoWeb
Discovery of the gas raises the specter of Martian life
If you roll out of bed and see the headline "Life on Mars," is it because: a) it's a hoax, b) NASA got lucky, c) scientific genius won out, or d) it is written in a British tabloid?
The British Sun received a slap on the wrist from the journal Science, but news sites buzzed cautiously over a new NASA study about methane gas detected on Mars in 2003. Methane plumes traced to three specific regions could signal active geological processes—or possibly even gas-emitting microbes, said scientists during yesterday's press conference.
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NASA Image Of The Day
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| A Chameleon Sky | ||
| The sands of time are running out for the central star of this the Hourglass Nebula. With its nuclear fuel exhausted, this brief, spectacular, closing phase of a sun-like star's life occurs as its outer layers are ejected and its core becomes a cooling, fading white dwarf. In 1995, astronomers used the Hubble Space Telescope to make a series of images of planetary nebulae, including the one above. Here, delicate rings of colorful glowing gas (nitrogen-red, hydrogen-green, and oxygen-blue) outline the tenuous walls of the 'hourglass.' The unprecedented sharpness of Hubble's images revealed surprising details of the nebula ejection process and may resolve the outstanding mystery of the variety of complex shapes and symmetries of planetary nebulae. Image Credit: NASA, WFPC2, HST, R. Sahai and J. Trauger (JPL)... | ||
| 03 Sep 2010 | ||
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