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Last updated on April 24, 2014 at 13:27 EDT

Latest lead scientist Stories

2008-07-04 09:00:12

By AARON MACKEY A historic chemistry test of Mars' arctic surface suggests the red planet is capable of supporting plants and microscopic life, though scientists with the UA-led Phoenix Mars lander were careful to qualify their initial findings Thursday. At the least, though, the test shows that Mars' arctic dirt is a lot like fertile soil in people's backyards and could be well- suited to grow such vegetables as asparagus. Calling it the first-ever wet chemistry test of another...

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2008-05-21 12:50:00

Thanks to a fortunate observation with NASA's Swift satellite, astronomers, for the first time, have caught a normal supernova at the moment of its birth--the first instant when an exploding star begins spewing its energy into space, transforming into a supernova that during its brief lifetime will shine brighter than billions of stars combined. Until this discovery, the only supernovae glimpsed during their first moments were the more rare kind--the ones whose birth cries are drowned out by...