Itokawa is surprisingly wet.
The longest-running surface mission laid the groundwork for some big things ahead.
We're under a time crunch.
Here are some highlights from its journey
Deep Sea Meets Deep Space
One small flight for drones
Submarines and rovers will go for a dive on the moons of Jupiter and Saturn
It's time to return to our hellish neighbor.
But we'll have to get there first.
Reflections from a prodigious force in space exploration.
Europa, the outer solar system, and a lot of questions.
Northwestern University puts on a Solar System symphony
Directed energy may be the key to rapid interstellar travel
These lucky CubeSats will ride on the maiden voyage of NASA's Space Launch System
Scientists are hot on the trail of our solar system's 9th planet
The next generation of planetary missions will look past surface appearances
How much are we really paying to explore the universe?
Our solar system is pretty familiar by now, but even the Moon was shrouded in mystery just 50 years ago
Pluto is just the beginning
Stranger worlds to come
New Horizons scientist Leslie Young discusses what to expect from the flyby on Tuesday, and the 28-year wait leading up to it
An interview with Keri Bean, NASA engineer and R2D2's best friend
The Dawn spacecraft could change the shape and scope of future missions