New research provides some clues about our solar system's most mysterious planet.
We're under a time crunch.
Pebbles and planetesimals pummeled the planet's early surface
Shower your friends with meteor facts.
A good week for space photography
The survey also confirmed the existence of two other moons, whose discovery was announced last year
The lightning struck more than twice.
Bright lights, big planet.
Plus: new insights into the planet's interior.
You can't see it—but Hubble can.
Here are eight surprising things NASA has learned so far.
A gallery of photos, visualizations, and other pictures of outer space.
Heat and drills will help us probe for alien microbes
Things haven't gone according to plan.
NASA's mission to Jupiter is brought to you by: the Sun, from 500 million miles away
It starts orbiting the deadly planet in July
Rise Of The Rocket Girls gives the untold story of the women behind the space race
Sometimes you just need a rocket that flies at 2 million miles per hour
The evidence is right in front of you.
The ocean-filled moon might hold the life we've long searched for in space. And scientists have one shot to reach it.
New Horizons scientist Leslie Young discusses what to expect from the flyby on Tuesday, and the 28-year wait leading up to it
This year's missions to the outer solar system are set to shake up the planetary family tree
Jupiter's moon is the best candidate for finding extraterrestrial life; here's how we're going to get there