The number of planets outside our solar system where extraterrestrial life could exist has doubled, a new study reveals.
After over 10 years gathering information on stars and galaxies, NASA has decommissioned its "galaxy hunter" spacecraft, the Galaxy Evolution Explorer.
The live stream of supernova 2013df begins at 4 p.m. PDT, 7 p.m. EDT, on July 2 and can be viewed in high def.
Researchers believe there may be 60 billion planets that could sustain water or life orbiting red dwarf stars in the Milky Way.
Astronomers have discovered that gas giant exoplanets, similar to Jupiter and Saturn, tend to stay close to their parent stars.
Astronomers discovered two planets orbiting "Sun-like stars" in the star cluster NGC 6811, approximately 3,000 light-years from Earth.
On Sunday night, the moon came closest to the Earth, allowing sky gazers to savor the biggest and brightest appearance of 2013.
The supermoon is appearing Sunday, and it promises to be a visually stunning event.
The latest Google Doodle celebrates the summer solstice, the longest day of the year.
A "bird" emerges from two merging galaxies in the latest image from NASA's Hubble Space Telescope.
Super-close, super-bright Supernova 2011fe provides "dream opportunity" to stimulate deeper thinking about markers of the expansion of the universe.
The winds of Venus are known to be traveling at a fast speed but have sped up in the last six years, and astronomers have no explanation for the acceleration.
NASA has issued a Grand Challenge to identify all potential asteroid threats to Earth.
Astronomers at NASA identified 26 new black holes in the Andromeda Galaxy, one of the galaxies closest to the Milky Way.
A new video captures the birth and death of supernova SN 2012fr located in the Great Barred Spiral Galaxy.
The black hole at the center of the Sculptor Galaxy is apparently sleeping despite the high level of star formation activity surrounding it.
A new ultraviolet photo of M101, or the Pinwheel Galaxy, highlights the billions of stars that may be similar to our Sun.
Astronomers discovered a light echo from supernova SN 2009 ig, resulting in a stunning image of a rare space phenomenon.
The fallout of a nova has been mapped by NASA's Hubble Space Telescope for the first time in 3D.
An newly discovered gas planet called HD 95086 b was detected using direct imaging -- a rare feat -- by astronomers from the European Southern Observatory.
The Ring Nebula closer to a jelly doughnut than a bagel, scientists say.
Here's a video of an explosion on the moon caused by a meteoroid March 17: It could have been viewed from Earth without a telescope, NASA said.