|Image credit: NASA / JPL-Caltech|
UV radiation quickly degrades amino acids on most Martian minerals, a new study shows.To read the rest, click on "Amino Acids Unlikely to Survive on Mars".
Using the “Open University Mars Chamber” in the UK, four British scientists watched to see what happened when amino acids were subjected to ultraviolet (UV) light. They spiked 11 different minerals known to exist on Mars with different concentrations of amino acids, then irradiated the rocks with UV ray levels expected at local noon for a total of 28 hours of exposure, the equivalent of about 6.5 Martian days’ worth of UV dosage. They published their results in an open-access paper on Icarus. Here are the highlights: