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 ...

For decades, scientists have tried to measure how fast the universe is expanding. This expansion rate is known as the Hubble constant, and it plays a central role in understanding the history and ...

Imagine looking up at the night sky and seeing a star suddenly burst into a blaze of light brighter than anything nearby. A flash so bright that it briefly outshines an entire galaxy before fading ...

An artist's impression of a magnetar with a wobbly accretion disk. (Joseph Farah and Curtis McCully) A never-before-seen 'chirp' in the light of an exploding star has revealed new clues about the ...

Scientists have detected the most distant supernova ever seen, exploding when the universe was less than a billion years old. The event was first signaled by a gamma-ray burst and later confirmed ...

Instead of focusing on how fast the universe is expanding, they looked at the ages of some of the oldest stars in our galaxy.

See what would happen if every black hole in the universe exploded at once. Trump Revokes TPS, Citing Fraud Concerns Why Erin Andrews’s Comments About Her Sports Career Are Going Viral on Thanksgiving ...

A recently detected flash of energy appears to have emanated from the wreckage of colliding galaxies, according to an international team of astronomers led by Penn State scientists. The burst, known ...