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09 April 2009
Without Nickel, Life on Earth Could Finally Breathe
Researchers have long puzzled over why oxygen flourished in Earth’s atmosphere starting around 2.4 billion years. Called the “Great Oxidation Event,” the transition “irreversibly changed surface environments on Earth and ultimately made advanced life possible,” said Dominic Papineau of the Carnegie Institution’s Geophysical Laboratory. Now, Papineau has co-authored a new study in the journal Nature,  which reveals new clues [...]
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21 February 2009
Arizona Scientist: We Could All Be Martians
As long as we’re still pondering human origins, we may as well entertain the idea that our ancestor microbes came from Mars. And Jay Melosh, a planetary scientist from the University of Arizona in Tucson, is ready with a geologically plausible explanation. Meteorites. "Biological exchange between the planets of our solar system seem not only possible, but inevitable," [...]
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28 July 2008
US Signs International Deal to Collaborate on Lunar Missions
NASA has signed a landmark agreement to collaborate with emerging space-faring nations for the exploration of the Moon. This collaboration will include Canada, Germany, India, Italy, Japan, South Korea, Britain and France in the aim to work with NASA developing new technologies and send a series of robotic exploratory missions to pave the way for [...]
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09 August 2007
An Experiment to Test Panspermia
One of most intriguing, and controversial, theories astrobiology is the concept of Panspermia. This idea proposes that life on Earth might have began on another planet, or maybe even out in interstellar space. Scientists have discovered just how hardy microbial life can be, surviving long journeys in the vacuum, cold, and radiation of space. Now [...]
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