astronomy

The planet's putrid atmosphere is a clue to where it first formed.

Donald Olson solves mysteries using celestial bodies.

Have you ever seen a flash of bright light streaking through the night sky? People around the world have different ways of explaining these so-called shooting stars.

There are a few wonders in the winter sky worth making time for.

It's three lunar events rolled into one.

"These latest results are opening up even bigger questions about its origins."

Neptune is like a celestial paint swatch: a stunning royal blue that demands attention.

A new study sheds light on the cause of the famous dimming of "Tabby's star."

In a composite photo, the International Space Station passes in front of the Sun during the total eclipse on August 21, 2017.

"From a NASA perspective, there is no other single event that has informed so many scientific disciplines."

The bizarre material just got a little less mysterious.

K2-18b orbits a red-dwarf star in the constellation Leo, and it's situated in the perfect zone to have liquid surface water.

Imagine trying to start a car that's been sitting in a garage for decades—and the car is 13 billion miles away.

Hurtigruten Cruises is confident you'll get a view of the show.

Even Carl Sagan, who created it, was turned down by NASA when he asked for one.

The cigar-shaped asteroid is 10 times longer than it is wide and was probably flung from a young stellar system, location unknown.

A composite image of Uranus by Voyager 2 and two different observations made by the Hubble Space Telescope

FYI, this ice giant is not pronounced "your anus," but rather, "urine us" … which is hardly an improvement.

Introducing Ross 128 b.

An artist's conception of the dwarf planet Ceres in the main asteroid belt.

The asteroid belt tells the story of the creation of the solar system.

"We have been waiting for this day for decades."

And you know what that means: Aliens!! (Kind of.)

It's Official: Uranus Smells Like Farts

An Astronomer Solves a 70-Year-Old Ansel Adams Mystery

Why Are There Shooting Stars?

How to Watch the Chinese Space Lab Tiangong-1 Plummet to Earth

10 Facts About the Dwarf Planet Makemake

Look Up! Residents of Maine and Michigan Might Catch a Glimpse of the Northern Lights Tonight

10 Facts About the Dwarf Planet Haumea

Winter Meteors, Valentine's Day Star, and a Black Moon: A Guide to the February Night Sky

Don’t Miss Next Week’s Incredibly Rare 'Super Blue Blood Moon Eclipse'

Mysterious 'Hypatia Stone' Is Like Nothing Else in Our Solar System

9 Compelling Facts About Neptune

Space Dust, Not an Alien Megastructure, Is to Blame for Star's Bizarre Behavior

What We Learned So Far From The Total Solar Eclipse of 2017—And Why There's Much More to Come

Neutron Star Collision Sheds Light on the Strange Matter That Weighs a Billion Tons Per Teaspoon

'Super-Earth' Exoplanet Could Potentially Support Life (And It Also Has a Neighbor)

Voyager 1's Back Thrusters Just Fired Up for the First Time in 37 Years

If You Don't See the Northern Lights on This Cruise, Your Next Trip is Free

You Can Now Get Your Own Copy of the Voyager 'Golden Record'

More Details Emerge About 'Oumuamua, Earth's First-Recorded Interstellar Visitor

8 Giant Facts About Uranus

Astronomers Discover Another Earth-Like Planet Near Our Solar System

8 Astounding Facts About the Asteroid Belt

Scientists Spot the First Interstellar Visitor to Our Solar System

Thanks to NASA, the Search for Habitable Worlds Just Got Easier