Astronomers have for the first time seen the birth of a magnetar—a highly magnetized, spinning neutron star—and confirmed that it's the power source behind some of the brightest exploding stars in the ...

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Particle never before seen on Earth detected; it could come from a primordial black hole and the origin of the universe.

Almost 13,000 years ago, North America underwent drastic changes at a rapid rate. Mammoths, mastodons, giant ground sloths, and many other large animals went extinct. Around the same time, the Clovis ...

But in the case of the James Webb Space Telescope (JWST), which launched on Dec. 25, 2021, this anniversary marks an im ...

Late-stage planetary collisions reshaped Earth and its neighboring planets, delivering water, altering their atmospheres, and influencing their tectonics. New findings suggest these violent impacts ...

Deep inside Earth, two massive hot rock structures have been quietly shaping the planet’s magnetic field for millions of years. Using ancient magnetic records and advanced simulations, scientists ...

Once America's most experienced astronaut, Apollo 13's Jim Lovell, who died at 97, was the first to visit the moon twice.