Planets
How Do New Planets Get Their Names?
Sorry, Planet McPlanetface: Asteroids, moons and other celestial bodies go through a strict set of international naming guidelines
The Case for Going to Venus
Sending a probe to Earth’s lifeless twin could help us understand how life rises—and falls—on faraway planets
One of Saturn's Moons is Making Astronomers Hungry
New images of the tiny moon are drawing comparisons to a ravioli, empanadas, walnuts, hamburgers...nom, nom, nom
New Definition Would Make the Moon and Pluto Planets
A suggested update to the International Astronomical Union criteria would add over 100 planets to the solar system
NASA Wants the Public to Log In to Help Find Planet 9
Citizen scientists can examine photos to help discover a new planet, which recent evidence suggests is hiding at the edge of the solar system
When Humans Begin Colonizing Other Planets, Who Should Be in Charge?
The biggest threat humans pose to other worlds is what we don’t know—or what we think we know, but don’t
Scientists Spot Seven Earth-Sized Planets Orbiting a Nearby Star
This newly discovered solar system presents the best opportunity yet to study potentially habitable worlds, NASA scientists report
“Are We Alone in the Universe?” Winston Churchill's Lost Extraterrestrial Essay Says No
The famed British statesman approached the question of alien life with a scientist's mind
NASA Releases Spectacular New Snapshots of Saturn’s Rings
Millions of moonlets appear to be tucked inside the debris that famously circles the planet
Scientists Spot Massive Wave in Venus' Atmosphere
The 6,200-mile long bow-shaped wrinkle may have been caused by gravity waves
Footprints Found at Ancient Hot Springs Could Represent Earliest Settlement of Tibetan Plateau
New age measurements of the footprints help pinpoint when humans first settled the highest region on Earth
Why Were Electric Cars Once Advertised as 'Ladies' Cars'?
Your questions answered by our experts
Sure, Earth Could Get Hit by a Deadly Asteroid—But There’s an Upside
Con: Devastating outer space impacts. Pro: Global unity!
Massive Survey Catalogues the Night Sky
Over four years, the Pan-STARRS telescope collected 2 petabytes of photos of the night sky, creating the most complete astronomical atlas yet
Check Out New Pictures of Saturn From Cassini’s Latest Orbit
New images of the ringed planet herald the spacecraft’s demise
How to Experience a Mission to Mars (If You Still Want to Come Back)
Space Camp for adults? It's definitely a thing
In Its Final Hurrah, Cassini Will Swoop Past Saturn’s Rings
The craft will take one last look at the ringed planet before diving into its depths
Mercury's Newly-Discovered "Great Valley" Puts Earth's Grand Canyon to Shame
The vast scar across the tiny planet is remarkable in itself—but it also reveals that Mercury may still be tectonically active
How the Pull of an Icy “Heart” Sent Pluto’s Poles Wandering
Using New Horizons data, scientists determine that the erstwhile planet has a more dynamic past than we thought
ALMA Reveals Planets Born Earlier Than We Thought
In 2014, astronomer David Wilmer aimed the ALMA Array at a young star 450 light years away
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