ESA's Gaia mission has determined he orbits of 154,741 asteroids in our solar system. Credit: ESA/Gaia/DPAC ...

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

Space around the Sun contains far more than planets. Scattered through it are smaller bodies made of rock, metal, ice and ...

Our solar system hosts almost 900 known moons; more than 400 orbit the eight planets while the remaining orbit dwarf planets, ...

Scientists discussed the threat of asteroids at a recent conference in Phoenix. Here's what they said.

The Rubin Observatory’s real-time alert system can detect millions of cosmic events per night, from asteroids to supernovae, ...

A study found that these cosmic bodies appear to hold up remarkably well to sudden energy deposition and shock conditions, so we may be able to knock them off course and avoid disaster.

"We don’t know where they are,” said NASA’s planetary defense officer Kelly Fast at the AAAS conference in Arizona this week.

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

It's been about eight months since the Vera Rubin Observatory (VRO) saw first light. Now the telescope is scanning the night sky to detect transient changes and sending alerts to astronomers and ...

In late winter, the zodiacal light is visible in the evening in the Northern Hemisphere (false dusk) and in the pre-dawn ...

A NASA planetary defense officer warns thousands of near-Earth asteroids capable of destroying a city remain undetected.