SETI has spent decades listening for a sharp, well-defined radio signal that could indicate it was sent by distant intelligent life. Now researchers believe that space weather could distort and blur s ...
Stellar plasma can smear alien radio signals before they escape their star system, making them harder for astronomers to detect.
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A Mechanic Dropped an 8-Pound Socket Down a Missile Silo—and Nearly Caused America’s Chernobyl
On the night of September 18, 1980, a Titan II missile carrying a thermonuclear warhead exploded in rural Arkansas. Here’s what the terrifying incident was like, from those who were there.
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