Scientists think they have identified a lava world so dramatic that it might boast a thin regional atmosphere of vaporized rock where it is closest to its star.
Mysterious repeating bursts of radio waves that fire in random patterns might come from neutron stars blasting asteroids with magnetic winds that travel at nearly the speed of light.
NASA just hailed its Voyager 2 probe in interstellar space for the first time in more than seven months.
Rings detected around a newborn star may suggest that planets are born earlier than previously thought, a new study finds.
Saturn's moon Titan just keeps getting weirder — and more tantalizing when it comes to scientists' hopes for life beyond Earth.
Just in time for Halloween, NASA announced results from the space agency's Juno mission that suggest "sprites" or "elves" could be frolicking in Jupiter's upper atmosphere.
A pair of astronomers is advocating a daring new research program: to turn our widening search for life beyond Earth into a hunt for dark matter.
On average, each sunlike star in the Milky Way likely harbors between 0.4 and 0.9 rocky planets in its "habitable zone," researchers have found.
A fireball meteor lit up midwestern skies on Jan. 16, 2018, then landed on a frozen Michigan lake. Analysis of the space rock revealed a rich array of extraterrestrial organic compounds.
The Skull Nebula, formally known as NGC 246, is captured in a new image from the European Southern Observatory using the Very Large Telescope.
A group of six researchers will embark on a mission to "Mars," this upcoming Monday (Nov. 2). The Martian crew will include artists, scientists and ... me!
NASA has collected the eeriest, most hair-raising sounds in the cosmos and compiled them in a playlist just in time for Halloween.
As families tuck into their couches to watch Charlie Brown's quest for the great pumpkin this Halloween, they may be surprised to hear that NASA has already discovered a "greater pumpkin."
Astronomers have spotted the smallest "rogue planet" candidate yet known, a Mars- to Earth-mass world that apparently cruises through our Milky Way galaxy unattached to a star.
This supermassive black hole's spin has been measured for the first time, and it's surprisingly low.