An asteroid that fell to Earth and exploded above Canada in 2022 was only around 20 inches wide — the smallest space rock ...

WB—is estimated to be between 240 and 525 feet across and will pass us at about twice the distance between the Earth and moon ...

A sample of the asteroid Ryugu returned to Earth by the Hayabusa2 mission was rapidly colonized by terrestrial microorganisms ...

A recent discovery made by scientists working with a sample of rock from outer space highlights one of the huge challenges ...

Scientists have found microorganisms crawling over a sample retrieved from the 200 million-mile-distant asteroid Ryugu. But ...

Computer simulations suggest that Mars' puzzling moons, Phobos and Deimos, may have been formed from debris created when a ...

Preliminary research suggests asteroid 2024 PT5, which stuck around Earth for almost two months, has lunar origins ...

Last year, researchers excitedly announced that they had found two organic compounds essential for living organisms in ...

A chunk of rock collected from the asteroid Ryugu contains bacteria—but, unfortunately, it's not evidence of alien life.

Japanese researchers have identified sodium carbonates, or salt crystals, in samples from the Ryugu asteroid brought back to ...

NASA has identified an asteroid rich in valuable metals like gold and platinum. Named 16 Psyche, has enough resources to make ...

In How to Kill an Asteroid, Robin George Andrews looks at the successes and shortcomings of planetary defense.