A NASA mission, IMAP, will investigate and map the sun's particles and energy across the entire heliosphere, using a ...

Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

Astronomers have discovered two new exoplanets that are similar to other worlds found in the Milky Way, but unlike any in our ...

The most elusive planetary aurora in the Solar System has finally been revealed in all its gently glowing glory.

A new classification scheme may help us better understand planet formation — including the history of our own family of worlds.

The gas giants outside our solar system are not capable of hosting extraterrestrial life, but do offer clues in a lingering ...

Meteorites are rocks from space that survive their fiery descent through Earth's atmosphere and reach the ground. More than ...

The NEO Surveyor fulfills a 2005 act of Congress ordering NASA to catalog 90% of near-Earth objects larger than 459 feet, ...

Pollard A quartet of Earth-like worlds, each about 20% to 30% the size of our planet ... of the sun. At 5.97 light-years from Earth, it is the fourth-closest star to our solar system, after ...

(CNN) — After decades of searching, astronomers have uncovered some of the strongest evidence yet of exoplanets orbiting Barnard’s Star, the nearest single star system to Earth. The four ...

A distant exoplanet discovered, named Enaiposha, is unlike anything found in our own solar system, similar to a "super-Venus" ...

“It’s like putting your thumb in front of the sun when you look ... “If these huge planets act like bowling balls cruising through our solar system, they can disrupt, protect or, in a ...