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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.
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.
- An uxorious, effeminate, or spiritless man.
- A timorous, cowardly fellow.