Solar storms, sharp sand, and near-weightlessness are just the tip of the iceberg.
It could be the largest moon we've ever seen
Here are some highlights from its journey
From the Popular Science archives.
An 'Oumuamua by any other name would still be as fascinating.
Is there a planet—or even planets—waiting to be discovered out there?
It's time to return to our hellish neighbor.
The traveller (maybe from another star) didn't stay long and it's moving away fast
A gallery of photos, visualizations, and other pictures of outer space.
This summer we'll get our closest ever look at the stormiest planet in the solar system
A far-out plan to create swarms of self-replicating solar panel satellites
How skeptical should we be, and how will we find out if this mystery planet is really out there?
Scientists are hot on the trail of our solar system's 9th planet
Our solar system is pretty familiar by now, but even the Moon was shrouded in mystery just 50 years ago
Piping hot Jupiter fries, please!
The ocean-filled moon might hold the life we've long searched for in space. And scientists have one shot to reach it.
Short answer: It depends who you ask
Pluto is just the beginning
After nine years and three billion miles, here's what we're learning from it all
New Horizons scientist Leslie Young discusses what to expect from the flyby on Tuesday, and the 28-year wait leading up to it
Better predictions can help us prepare
This year's missions to the outer solar system are set to shake up the planetary family tree
Don't pack your bags yet
Rosetta is on a journey to unlock the history of the solar system.