Morning Overview on MSN
Nuclear weapons tests: The physics that makes them so hard to hide
Nuclear weapons tests are among the most violent events humans can trigger, and that violence leaves fingerprints in the ...
Space.com on MSN
'Super star' being shredded by black hole releases as much energy as 400 billion suns
"This was many times more energetic than any similar event and more than any known explosion powered by the collapse of a ...
It's the last clearly observed supernova in the Milky Way, Gassel said.
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