News
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SpaceWhy losing Arecibo is a big deal for astronomy
The radio telescope at the Arecibo Observatory has collapsed, robbing scientists of a special tool for studying everything from asteroids to galaxies.
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ArchaeologyTwo stones fuel debate over when America’s first settlers arrived
Stones possibly used to break mastodon bones 130,000 years ago in what is now California get fresh scrutiny.
By Bruce Bower -
Quantum PhysicsThe new light-based quantum computer Jiuzhang has achieved quantum supremacy
A second type of quantum computer has now performed a calculation impossible for a traditional computer.
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HumansAncient humans may have deliberately voyaged to Japan’s Ryukyu Islands
Satellite-tracked buoys suggest that long ago, a remote Japanese archipelago was reached by explorers on purpose, not accidentally.