Donaldjohanson, a main belt asteroid, could be a relic of a cosmic collision that took place 150 million years ago.

"This has been a decade-long detective story, with each recorded meteorite fall providing a new clue," said one astronomer.

Donaldjohanson formed about 150 million years ago when a much larger asteroid broke apart. Since then, its orbit and spin ...

"Scientifically there's a huge amount we can learn from asteroids," says Alan Fitzsimmons, an astronomer at Queens University ...

One exciting project currently happening is NASA’s Lucy mission, which is on a quest to learn more about asteroids orbiting ...

Where do meteorites of different types come from? In a review paper in the journal Meteoritics & Planetary Science, ...

NASA is monitoring a bus-sized asteroid as it makes its closest approach to Earth today, among a group of five space rocks ...

New Southwest Research Institute-led modeling indicates the main belt asteroid (52246) Donaldjohanson may have formed about ...

New Southwest Research Institute-led modeling indicates the main belt asteroid (52246) Donaldjohanson may have formed about 150 million years ago when a larger parent asteroid broke apart; its orbit ...

Countless asteroids in our solar system, some close, some far — but did you know that some of these space rocks have names?