More from David Shiga
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Physics
How to create temperatures below absolute zero
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Physics
North Korea could make two nuclear bombs per year
News
Space
Comet caught throwing basketball-sized snowballs
News
Physics
Found: first planet from another galaxy
News
Physics
Nuclear bomb debris holds clues to who planted it
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Physics
Most powerful gamma-ray bursts linked to black holes
News
Earth
Earth may have had water from day one
News
Life
Super-Earths may be hostile to life
News
Earth
Space tourism could have big impact on climate
News
Space
Dim galaxy is most distant object yet found
News
Physics
Kitchen sink experiment simulates exotic white holes
News
Life
How to find out if exo-Earths host life
News