The Solar System | Astronomy.com

Asteroid 2024 YR4’s odds of hitting Earth just got a lot smaller

40 cosmic questions and answers

Bennu composite

Bennu isn’t likely to hit Earth — but if it did, here’s what would happen

Artist's concept of what Andromeda will look like in the sky in the future

Milky Way, Solar System

What will happen to the solar system when the Milky Way and Andromeda Galaxy merge?

How moonquakes could rattle Artemis astronauts

The Moon’s epic ‘grand canyons’ were gouged out in 10 minutes by an asteroid strike

Solar system planets

Why do the solar system’s planets have different compositions?

Scientists find life’s ‘building blocks’ in asteroid Bennu samples

Artist's concept of Eris

20 years ago, the discovery of Eris spelled doom for planet Pluto

Comet 67P/Churyumov-Gerasimenko

Does a comet’s period change because it loses mass every time it nears the Sun?

Robotic Spaceflight, Solar System

BepiColombo nabs its best views yet of Mercury

Pluto may have ‘kissed’ Charon to capture it