Cotton candy clouds in the Martian middle atmosphere may owe their life to dying meteors.
The Planetary Society's LightSail 2 spacecraft is finally ready to attempt flight by light. Here's what to expect from the June 24 launch!
Water is a complex problem on Earth: Some places get far too little of it and some get far too much.
A small space rock crashed into the Martian surface recently, producing a fresh crater that researchers estimate is 49 feet to 53 feet (15 to 16 meters) wide.
Intricate ring structures in the outer portion of the disk of dust and gas that surrounds the young star HD 169142 were likely carved by a newborn planet on the move.
This abstract night-sky photo shows the full moon peeking through wispy clouds and barren tree branches while surrounded by brilliant, blue lunar corona.
India is about to take its biggest leap to the moon yet next month, with a mission to land at the lunar south pole.
Engineers have installed the headlike mast on the Mars 2020 rover and put on a (temporary) set of wheels as well.
Next month, astronomers will scan the Beta Taurid meteor shower in search of asteroids that might someday threaten a potentially catastrophic collision with Earth.
Despite signs that they are at the end of their lifetime, some galaxies may continue to produce stars, contrary to expectations.
NASA's OSIRIS-REx asteroid-sampling probe has shattered the close-orbit record it set less than six months ago.
The mysteriously quiet behavior of the Milky Way's supermassive black hole may be influenced by magnetic field lines.
The United Nations Office for Outer Space Affairs and the China Manned Space Agency have announced the winners of their joint opportunity to conduct experiments onboard the China Space Station.
Starshade exoplanet-hunting missions may be technologically daunting, but they're not beyond NASA's reach, recent research suggests.
It looks like Starfleet is literally embedded on the planet next door: A dune in the shape of the famous logo from "Star Trek" appears prominently in a new picture from Mars.
When the solar system decided it liked Saturn and wanted to put a ring on it, it put together the most stunning, complex puzzle ring possible.
As auditorium lights were dimming for an event called "Eyes in the Skies," a girl and her mother made their way to a pair of front-row seats.