Chunks of Alpha Centauri—Our Closest Stellar Neighbor—Might Have Already Reached Us
A new study examines how much material from the closest star system to Earth will end up in orbit around the Sun, and how ...
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A Record-Breaking 'Ghost Particle' From Outer Space Made a Splash of Light in the Mediterranean
Astronomers have detected the highest-energy cosmic “ghost particle” on record, deep under the Mediterranean Sea. The neutrino, as the subatomic particle is called, was found by researchers at the ...