Astronomer Eliza Kempton said that she had waited her "entire career" to peer into an atmosphere from this mysterious class of planets.

NASA’s Curiosity rover has spotted carbon-containing minerals that can tell scientists more about what ancient Mars’ ...

The number of known exoplanets seems to grow every day. Most of them are worlds completely unlike our own. But some get pretty close to something resembling home - and may someday become exactly that.

A piece of space junk called Cosmos 482 is unlikely to pose a threat to people or property. But space experts say it ...

Though they don't orbit around our sun, sub-Neptunes are the most common type of exoplanet, or planet outside our solar ...

For a pilot, the first signs of flying into an ash cloud can include sudden darkness, fluctuating airspeed, and landing ...

Despite its dry, dusty surface and thinner atmosphere, Mars may have more in common with Earth than scientists previously ...

Super-Earths, larger planets similar to Earth, are far more common across the universe than scientists previously believed, ...

ALMA observations of carbon monoxide emission from 15 protoplanetary disks reveal a stunning variety of gas structures, ...

A team of international scientists has identified a promising Planet Nine candidate by comparing infrared surveys of the sky ...

Once upon a time, Earth was strutting its stuff with a dazzling ring system, just like its buddy Saturn! But hold onto your space helmets, because a wild cosmic collision sent those rings spinning ...

Venus dominates as the brilliant “Morning Star” in the east-southeast before dawn; the Eta Aquariid meteor shower takes place ...