Active small bodies—including comets, active asteroids, icy minor planets, and transitional objects—occupy a unique position in planetary science. As ...

A small, round piece of asteroid Ryugu (sample #91), called “S-lunar,” contains tiny particles (less than 1 mm) that will ...

Paleomagnetic analysis of 28 Ryugu asteroid particles reveals stable magnetization acquired within millions of years of solar ...

Samples from Ryugu, a small, near-Earth asteroid, preserve natural remanent magnetization (NRM) from the early history of the ...

A group of astronomers has found a solar system 116 light-years from Earth that seems to challenge current theories about how ...

Microscopic crystals extracted from meteorites could help settle a debate about the birth of our patch of the Milky Way.

Scientists from MIT and their colleagues have estimated the lifetime of the solar nebula — a key stage during which much of the solar system evolution took shape. This new estimate suggests that the ...

New work from Carnegie’s Alan Boss and Sandra Keiser provides surprising new details about the trigger that may have started the earliest phases of planet formation in our solar system. It is ...

This video is an artistic representation of a newly discovered system, LHS 3154, which contains a planet far more massive for its sun than current models would predict. UNIVERSITY PARK, Pa. – The ...

From Pluto’s tilted orbit to rogue asteroids, discover the chaotic leftovers of solar system formation. This video explains ...