NASA is monitoring an asteroid approximately the size of an airplane as it prepares to pass by the Earth on March 21. The ...

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

"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 ...

YR4, which orbits the sun every four years and periodically crosses Earth's orbit. The nature of its orbit makes it a ...

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

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

Despite their overall similarities, asteroids are usually pretty distinct from one another. Vesta has a very different ...

For an hour, HERA flew as close as 5,600 kilometers from the Martian surface, at a speed of 33,480 kilometers an hour. It ...

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

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