One billionaire wants to move industry off-world, returning Earth to a pristine state. The other wants to colonise Mars.

April 21 - 28 is International Dark Sky Week, a global celebration of the night sky during which like-minded organizations ...

A reddish star is about to pass through a "beehive" of stars. That "star" is actually one of Earth's planetary neighbors.

NASA has recently shared groundbreaking footage of Mars, offering the clearest images of the red planet ever captured by the ...

These are the kinds of questions astrophysicist and science journalist Adam Becker poses in his new book, More Everything ...

Credit: NASA, ESA, STScI/Cover Images To commemorate the 35th anniversary of its launch into orbit, NASA’s Hubble Space ...

Whether or not we’re alone in the universe is one of the biggest questions in science. A recent study, led by astrophysicist Nikku Madhusudhan at the University of Cambridge, suggests the answer might ...

NASA’s Mars Reconnaissance Orbiter (MRO) has captured what’s believed to be the first orbital image of the Curiosity rover ...

The HiRise camera is living up to its name, capturing a rare look at the veteran rover from way up in Martian orbit.

New research suggests ancient Mars may have been warm and wet, with rainfall or snowmelt carving its iconic valleys.

Perhaps the best known of all comets is Halley, correctly pronounced so that it rhymes with rally, not daily. It is named after the 17th-18th century astronomer Edmond Halley. This ...

In celebration of the Hubble Space Telescope’s 35 years in Earth orbit, an assortment of images that were recently taken by ...