CAPE CANAVERAL, Fla. (AP) – The only spacecraft ever to orbit Mercury ended its four-year tour with a crash landing Thursday. NASA’s Messenger plunged from orbit as planned and slammed into the sun’s ...

It's unlikely you'll be able to walk outside and see a line of planets, but according to NASA, a seven-planet parade happening tonight could be visible in some form in parts of the U.S. The upcoming ...

ESA's Solar Orbiter captured views of the planet Mercury passing in front of the Sun. Multiple instruments aboard the ...

On Feb. 28, a stellar alignment of planets will illuminate the night sky for the last time in a decade Space Frontiers/Hulton Archive/Getty Calling all stargazers and astronomy enthusiasts — something ...

Skywatchers who spotted the Jupiter-Venus conjunction on Aug. 12 are in for a dazzling display in the night sky through the end of August, with a "planet parade" building in the eastern sky, with ...

Sky gazers across the U.S. will have a chance to see an extraordinary celestial event on Friday as all of the planets in our solar system will appear in the evening sky. This phenomenon known as a ...

What can a 3D map of an exoplanet’s atmosphere teach astronomers about the planet’s formation, evolution, and composition?

On July 4, there will be an uncommonly good opportunity to get a glimpse of Mercury, the smallest, speediest planet in our solar system. Named after the Roman god known for his winged feet and swift ...

Stargazers will be treated to a dazzling six-planet "alignment" this January. A planetary alignment, or a "planet parade" according to the internet, will grace our night sky just after dusk, according ...