A 'Forbidden planet' defies odds and thrives under inhospitable conditions.
New research provides some clues about our solar system's most mysterious planet.
How the gas giant got its rings.
Shamu dreams of Europa.
Looking at the stars takes you back through time. All the way to the beginning.
Short answer: Because we changed the definition of the word “planet” to better fit its meaning.
And it could help prove the existence of Planet Nine.
It could be the largest moon we've ever seen
Now astronomers want to know: what makes a star a star?
Pebbles and planetesimals pummeled the planet's early surface
Shower your friends with meteor facts.
Researchers might not have to dig as deep as they thought to find proof of biological activity.
The survey also confirmed the existence of two other moons, whose discovery was announced last year
And that's only the inner asteroid belt.
The lightning struck more than twice.
Bright lights, big planet.
Is there a planet—or even planets—waiting to be discovered out there?
But the cold would kill you before the smell did.
Submarines and rovers will go for a dive on the moons of Jupiter and Saturn
Our solar system's largest planet is a master of disguise.
Small, but mighty.
Don't you want to meet them?
Europa, the outer solar system, and a lot of questions.
You can't see it—but Hubble can.
Autonomous science-bots will make it easier to explore our solar system … and beyond.
Fifty times the size of Jupiter.
Here are eight surprising things NASA has learned so far.
A gallery of photos, visualizations, and other pictures of outer space.
It's surprisingly lacking in heavy elements
Not all scientists are happy about recent Discovery mission picks
And its clouds may be made of gemstones
Spaceman documents Mike Massimino's unlikely journey from fire inspector's son to elite astronaut
Hints of a subsurface ocean of H2O
Giant planet orbits three stars at once
Why is NASA's longest-serving woman an hourly employee?
Let the science begin
The mission will give us our best views yet of the baddest planet in the solar system
Juno is closing in on one of the most dangerous places in the solar system
We're on the scene for the Juno spacecraft's arrival at Jupiter tonight
Juno will zoom in on Jupiter on July 4th
Meet the 12-foot-tall behemoth that's about to arrive at Jupiter
It starts orbiting the deadly planet in July
Astronomers still have no clue what's causing this star's weird behavior
Sometimes you just need a rocket that flies at 2 million miles per hour
Here's the whole collection
The evidence is right in front of you.
Planet 2MASS J2126-8140 orbits a trillion kilometers out from its sun
Scientists are hot on the trail of our solar system's 9th planet
Till mid-February, early risers will see the first five-planet alignment in a decade
The next generation of planetary missions will look past surface appearances
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.
The first one we've seen outside our solar system
Short answer: It depends who you ask
Just in case you get lost in the Asteroid Belt
Reminder: space is really big
New Horizons scientist Leslie Young discusses what to expect from the flyby on Tuesday, and the 28-year wait leading up to it
Introducing the High-Definition Space Telescope
In 1952, the Hayden Planetarium offered applicants the trip of a lifetime
And he thinks the upcoming flyby will prove 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
The Dawn spacecraft arrives at Ceres this March, and it could be the most surprising space mission in decades
Introducing the Next-Generation Transit Survey, the sharpest exoplanet-seeking scope on Earth
With no plans for future upgrades, the telescope faces a fiery end
My, what epic epochs you have there
This summer we'll get our closest ever look at the stormiest planet in the solar system
From the Popular Science archives.
It's completely different from Earth
We're under a time crunch.
Things haven't gone according to plan.
This gas giant has seen it all.
Problems with the spacecraft's engines are preventing it from entering a new orbit for observations
Plus: new insights into the planet's interior.
Researchers hope Juno could help shed light on why Jupiter's northern and southern lights behave differently.
NASA's mission to Jupiter is brought to you by: the Sun, from 500 million miles away
Tuning in to the turbulence
On a semi-regular basis
The water worlds in our solar system are adding up
Looking into a massive storm.
A good week for space photography
With scorching temperatures day and night, WASP-43b ain't no place to live.
Marking a new space milestone
And may be generating heat in the planet's atmosphere
A portrait of the planet in high-resolution
Here's the most gorgeous space news you need to catch up on.
Even in space, bureaucracy exists.
Scientists directly imaged two embryonic exoplanets 370 light-years away.
So hot right now.
As black as day.
Seeing is believing
Pluto is just the beginning
It's just getting started
Stranger worlds to come
From 283,000 miles out, the spacecraft is already making discoveries