Solar storms, sharp sand, and near-weightlessness are just the tip of the iceberg.
Scientists have more thoughts on 'Oumuamua.
We haven't seen a rock like this in 50 years.
And it could teach us about the early solar system.
And that's actually not the craziest thing in store for this mission.
Even in space, bureaucracy exists.
It could be something even cooler.
How the gas giant got its rings.
It's the farthest object we've ever spotted in our neighborhood.
It's now one of two working spacecraft in interstellar space.
After a long trip, OSIRIS-REx gets down to business.
And in a great year for space exploration, that's saying something.
We're under a time crunch.
Despite what Harvard scientists say.
It defied the odds to discover thousands of planets.
And it's going to keep on smashing them.
Meet the moon with 11 mile high cliff
It follows its predecessor toward where no other (active) spacecraft has gone before.
And it could help prove the existence of Planet Nine.
It could be the largest moon we've ever seen
Here are some highlights from its journey
From the Popular Science archives.
Pebbles and planetesimals pummeled the planet's early surface
Deep Sea Meets Deep Space
The Parker Solar Probe is our first mission to "touch" the Sun
Shower your friends with meteor facts.
The survey also confirmed the existence of two other moons, whose discovery was announced last year
And that's only the inner asteroid belt.
An 'Oumuamua by any other name would still be as fascinating.
Cyborgs, and interstellar probes, and AI.
You map, IMAP, we all map.
Is there a planet—or even planets—waiting to be discovered out there?
Something's got the Kuiper belt's rocks off, and there's a scramble to find it.
High impact research.
The early solar system was a wild, world-destroying place.
Planets are basically just giant dust bunnies.
It's time to return to our hellish neighbor.
Instead of hosting planet-friendly dust, Proxima Centauri spews radiation.
Like, can we even do that?
New Horizons will soon find out what's up with MU69.
What is the solar wind, anyways?
The traveller (maybe from another star) didn't stay long and it's moving away fast
But we'll have to get there first.
Europa, the outer solar system, and a lot of questions.
Another day, another hypothetical object on the outskirts of the solar system.
This gas giant has seen it all.
It's surprisingly lacking in heavy elements
The Saturn explorer's death spiral begins on Sunday
The anatomy of a Dyson Sphere.
It could help us learn more about how stars and planets form
Three of them may be habitable
A look behind the scenes of NASA's advanced solar probe
New evidence suggests it could be a rogue planet captured by our sun
It may be the naked core of an ancient planet
Naming new worlds is a confusing mess
For your favorite space enthusiast, go above, to infinity, and beyond.
The spacecraft has orbited a duck-shaped comet since 2014, but now its mission is drawing to a close
Konstantin Batygin is one of the 10 most brilliant people of 2016
When NASA's OSIRIS REx probe launches on Sept. 8, it will be carrying this innovative tool
It could give us clues to how water got to Earth
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
Despite a recent glitch, LightSail 2 is still aiming for a historic flight in 2017
This summer we'll get our closest ever look at the stormiest planet in the solar system
Where can I find a planet like that?
This summer, the mission may get funding to travel to a mysterious rock at the edge of the solar system
Northwestern University puts on a Solar System symphony
But its first stop will likely be an asteroid
Before Breakthrough Starshot goes interstellar, let's test the laser sails
Rise Of The Rocket Girls gives the untold story of the women behind the space race
A far-out plan to create swarms of self-replicating solar panel satellites
Frozen drinks anyone?
And it's still not Pluto
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
And what does it have to do with my GPS being wonky?
You are getting verrry sleeepy
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.
We are very very small
Short answer: It depends who you ask
Pluto is just the beginning
Stranger worlds to come
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
Raise the e-sail
And he thinks the upcoming flyby will prove it
Better predictions can help us prepare
We really need to work on our communication skills
Speak up, LightSail, we can't hear you!
This year's missions to the outer solar system are set to shake up the planetary family tree
Close encounters of the stellar kind
Jupiter's moon is the best candidate for finding extraterrestrial life; here's how we're going to get there
The finding is good news for the search for intelligent alien life
As you battle the blizzard, just be happy you don't live on Pluto
The Dawn spacecraft arrives at Ceres this March, and it could be the most surprising space mission in decades
Rosetta is on a journey to unlock the history of the solar system.