It wasn’t science fiction — it was humanity’s first attempt to stop a cosmic killer. NASA’s DART mission smashed into an ...

They sound like characters from a new Marvel movie, but these “Planetary Defenders” are real-life scientists in Tucson and elsewhere who are working to save the world from a major asteroid impact.

CAPE CANAVERAL, Fla. (AP) — Scientists have finally given the all-clear to Earth from a newly discovered asteroid. After two months of observations, scientists have almost fully ruled out any threat ...

An asteroid is on a collision course with Earth, possibly making impact in 2032. An asteroid is on a collision course with Earth, possibly making impact in 2032. In the unlikely event that Asteroid ...

A “city killer” asteroid experts feared was on a crash course with Earth is now expected to miss the planet — but it still has a chance of smashing into the moon. Asteroid 2024 YR4, first detected in ...

An asteroid measuring as wide as 295 feet is possibly headed right toward Earth, but don’t run for cover just yet. A NASA-funded telescope in Rio Hurtado, Chile, first spotted the asteroid, named 2024 ...

NASA has found sugars essential for life on Earth in samples of the 4.6 billion-year-old Bennu asteroid. Scientists ...

A newly discovered asteroid just whizzed past Earth, marking the second-closest asteroid flyby on record, astronomers say. The asteroid flew over Antarctica just before 9 p.m. ET on Sept. 30, about ...