Solar system

Hubble Space Telescope catches the details of a complex cometary breakup as it approaches the sun

Join me for some icy-sweet geology in the outer solar system, and learn why New Horizons is a great way to spend just under a stadium's worth of money

What are some of the most intriguing and unexpected puzzles about the universe?

Laboratory research suggests that an unexpected layer of semimetallic, optically dark hydrogen lurks inside worlds like Jupiter and Saturn

The first 21st-century images of a dark vortex in Neptune's atmosphere will help probe the ice giant's atmospheric behavior

King Jove is one hell of a planet. It's also hell for a spacecraft

Latest New Horizons images of Pluto are the mission's highest-resolution captures

The answer lies in overcoming known and yet-to-be discovered hurdles—it'll be a wild ride

Safely landing a first-stage rocket on a ship opens up "cheap" orbital space, but also shows a path to Mars

Guess what these images are and earn your stripes as a cosmic sightseer

NASA knows, and it maintains active archives of these data. Here are maps for the positions of known natural objects in the inner, outer and distant solar system in January 2016

A new analysis of outer solar system orbits suggests that there really could be a hitherto unseen giant planet orbiting far from the sun—but what are the implications?