NASA recently announced that the latest results from NASA's Curiosity Rover on Mars provide clear physical evidence that Mars once had all the conditions necessary to support life. Despite the skeptical reception given to recent news that the rover may also have found indirect evidence of organic compounds and active microbiological activity, other recent scientific results have gone even further. One Australian study from 2011 concluded, given what we know about Mars now, 3% of its total volume (as compared to 1% of Earth's) is likely habitable to known terrestrial lifeforms. And more recently, further analysis of the results of experiments performed by the 1976 Viking Lander mission suggests that we have likely detected active microbiological activity on Mars already, with one researcher going so far as to claim a 99% certainty that those earlier results detected life. (Previously).
Dr. David Morrison is the senior scientist at NASA's Astrobiology Institute in the Ames Research Center in California. For the past eight years he's also run the Ask an Astrobiologist feature on the institute's website. "Started by a civic-minded intern, the column has become the go-to place for concerned citizens to write to NASA and ask if, as they'd heard on the internet, the world will truly end on December 21, 2012. Before he took the helm on Ask an Astrobiologist, Dr. Morrison hadn't heard anything about such theories. Now he can't escape them." Meet NASA's unofficial answerer of apocalypse emails -- at least until December 23rd. [more inside]
NASA Proves Building Blocks Of DNA Come From Space. "NASA researchers studying meteorites have found that they contain several of the components needed to make DNA on Earth. The discovery provides support for the idea that the building blocks for DNA were likely created in space, and carried to Earth on objects, like meteorites, that crashed into the planet’s surface. According to the theory, the ready-made DNA parts could have then assembled under Earth’s early conditions to create the first DNA."
“NASA will hold a news conference at 2 p.m. EST (11am PST) on Thursday, Dec. 2, to discuss an astrobiology finding that will impact the search for evidence of extraterrestrial life. Astrobiology is the study of the origin, evolution, distribution and future of life in the universe.” Watch it HERE live. [more inside]