Scientists warn the universe could reverse its expansion and collapse in a “Big Crunch” — with the first signs possibly emerging in just 10 billion years.

A comet that was born in another solar system and could be billions of years old is hurdling through Earth’s solar system — a ...

Although it won’t hit Earth, an asteroid once labeled a “city killer” is now back in the spotlight — this time, because it ...

KTLA speaks with Davide Farnocchia, navigation engineer at NASA’s Jet Propulsion Laboratory, who works in the agency’s Center for Near-Earth Object Studies. He shares how scientists tracked the ...

Three dozen scientists from all over the world have been in Galesburg this summer tracking near-earth asteroids and charting ...

Harvard astrophysicist Avi Loeb has cowritten a research paper speculating whether the comet 3I/ATLAS is in fact "hostile" ...

On July 30, 2025,asteroid 2025 OL1—measuring roughly the size of a small aircraft—will pass Earth at a distance of 1.29 ...

"Up to 10% of the lunar ejecta could reach Earth within days," said Paul Wiegert, a planetary scientist and lead author of ...

John Sandusky, a scientist at Sandia National Laboratories, stands in the field of heliostats at the National Solar Thermal ...

An extraordinary celestial event could unfold in the night sky in less than a decade if an asteroid passing Earth collides with the Moon. The impact of asteroid 2024 YR4 into the lunar surface would ...

A new study by astronomers at the University of Western Ontario suggests and asteroid strike in 2032 could create hundreds of ...