BBC Sky at Night Magazine on MSN
What would proof of alien life look like? Here's what scientists are really looking for
The scientific community tends to employ ‘confidence of life’ detection scales: a multi-step ‘ladder’ that begins with ...
On May 25, 2008, NASA's Phoenix lander arrived on Mars. [‘On This Day in Space’ Video Series on Space.com] Phoenix was NASA's sixth mission to successfully land on Mars, and it was the first mission ...
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