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 ...

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 ...

Could a giant planet between Mars and Jupiter have doomed Earth? A new study suggests that small changes would have been ...

Although NASA's Lucy spacecraft's upcoming encounter with the asteroid Donaldjohanson is primarily a mission rehearsal for ...

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

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

Our model, which begins with the degassing of ice from the original asteroid belt, successfully accounts for the amount of water needed to form oceans, rivers and lakes, and even the water buried ...

The asteroid is hurtling towards us at a zippy 15,000 miles per hour, according to the space agency's Jet Propulsion Laboratory.

Most of the time these asteroids remain restrained within that interplanetary belt by Jupiter's gravitational field, unable to coalesce into a larger body. But occasionally another asteroid or the ...

Illustration: NASA’s Goddard Space Flight Center/Conceptual Image Lab/Adriana Gutierrez The Lucy spacecraft just got its first good look at the main belt asteroid Donaldjohanson as the NASA ...