An 'Oumuamua by any other name would still be as fascinating.
Some science grinds to a halt when the government shuts down.
Witness history in the making
Popular Science goes way back
Can you feel the love?
This summer, the mission may get funding to travel to a mysterious rock at the edge of the solar system
Imagine the space-scuba diving potential
And it's going to keep on smashing them.
New Horizons scientist Leslie Young discusses what to expect from the flyby on Tuesday, and the 28-year wait leading up to it
Deep under the icy crust
Here's what New Horizons saw as it zoomed past the former planet
Fasten your seatbelts
They're teasing us with this awesome false-color picture
It has to do with a surprisingly hazy atmosphere.
Charon is the real #SuperBloodMoon in latest New Horizons pics
But we won't know until we get there.
New evidence suggests it could be a rogue planet captured by our sun
NASA's mission to Jupiter is brought to you by: the Sun, from 500 million miles away
It turns out proximity is pretty inconsequential.
The Parker Solar Probe is our first mission to "touch" the Sun
It follows its predecessor toward where no other (active) spacecraft has gone before.
The Gaia satellite charts stars like never before.
The spacecraft completely changed our view of Saturn and her moons
Like a giant egg yolk in the sky
Our planet's personal space heater is incredibly efficient.
But what caused it?
We get it, Sun, you're the best and brightest
The Parker Solar Probe is finally on its way.
Also in space: A neighborhood of black holes, a new (and old) reason to study Venus' clouds, and the end of the Lunar XPrize.
Findings from the MAVEN spacecraft suggest solar eruptions helped to destroy Mars' atmosphere
A daily dose of beautiful from the DSCOVR satellite
You can learn a lot from 4.5-billion-year-old rocks.
One of our writers went all the way to the remote Faroe Islands to get the best view of the event
New research clears the reputation of these distant signals
Gas might keep the dwarf planet's subsurface ocean from freezing.
Nuclear explosions, space collisions, or gentle nudges from an ion beam?
More exciting news about cold, dead rocks
A total eclipse of the heart
New images zero in on the former planet's diverse surface
Short answer: Because we changed the definition of the word “planet” to better fit its meaning.
The latest and greatest images from the New Horizons mission
Short answer: It depends who you ask
The New Horizons flyby is over, but now the real fun begins
A magnificent flare, with a magnitude of 6.7. Plus, see our favorite Sun pics ever
The family isn't close.
Erupting slush instead of lava
What to expect as the Rosetta mission follows Comet 67P to its closest encounter with the Sun
NASA's IRIS mission publishes its first observations.
Could this transmission come from intelligent life?
Looking good, Earth
NASA releases a breathtaking close-up right before New Horizons flyby
Pulled by dual gravity, the egg-shaped satellites tumble like eerie dice
This year's missions to the outer solar system are set to shake up the planetary family tree
And he thinks the upcoming flyby will prove it
Sometimes you just need a rocket that flies at 2 million miles per hour
It just keeps getting better
The former planet is frosted in the stuff
We just can't get enough
Red, white, and black
Scientists aren't just jerking you around—this is about something more than your childhood nostalgia
(If you are like our editors and obsessed with all things space)
Like icebergs in the Arctic Ocean
Watch it live, right here at 3pm, and prepare to be blown away
Based on NASA's best photos, anyway
There's a chance you signed up back in 2005, alongside Elon Musk and Bill Nye
So. Many. Things.
After nine years and three billion miles, here's what we're learning from it all
Stranger worlds to come
Just 3.5 million miles to go!
Even though I helped demote it
New Horizons spacecraft reveals the dwarf planet is slightly larger, has polar ice cap, and more
Space sailors' delight?
The heavy heart may have tipped the world over
What's on the horizon for the New Horizons spacecraft
Plus, is that a polar ice cap we see?
New false color images reveal surprising geologic details
Bubble, bubble, toil and trouble
Meanwhile in space: dusty donuts, 50 launches, and pizza storms on Jupiter.
I spy with my little eye some variations in tone
Cathy Olkin talks about what New Horizons has seen and where it's going next
Latest New Horizons images show an alien landscape, and highest-resolution color map yet
It's the end of the world as we know it
That's three moons down, two to go
In July, New Horizons crosses the next great frontier in our solar system
Lookin' pretty sharp, for a dwarf planet
Emails among scientists suggest it's possible
Throwing shade on Earth's telescopes
A look behind the scenes of NASA's advanced solar probe
The little white dot is only going to get bigger
The first color movies from New Horizons show Pluto and Charon in a weird waltz
Pics captured by New Horizons from just 48,000 miles away reveal the strange alien world
The ghost of stars past
No such thing as too many Pluto pics
This is anything but hot
Massive chasms on the dwarf planet's largest moon explained
When the stars align, you can zoom way in.