A stunning rainbow-colored cloud of gas surrounds a pair of stars that duked it out a few hundred years ago.
Streams of plasma from the sun create "chirping" and "whistling" noises heard by NASA's Parker Solar Probe.
The Taal volcano eruption in the Philippines this week sent ash plumes 9 miles (14 kilometers) into the air, new satellite imagery shows.
Several supermassive black holes have been found wandering through their dwarf host galaxies, offering new clues about how similar black holes evolved in the early universe.
Astronomers using NASA's Transiting Exoplanet Survey Satellite found that the star ancient Egyptians once used as their North Star is part of a binary pair of stars that eclipse one another.
A new approach to detecting oxygen in the atmospheres of other planets may aid in the search for life beyond Earth.
Rain passed over southeastern Australia on Sunday (Jan. 5), offering a brief moment of relief from the deadly wildfires that have been raging across the continent for months.
NASA's Mars 2020 rover has taken its first test drive, representing a significant milestone in preparing to launch to the Red Planet next summer.
Holiday spirit fills the International Space Station as astronauts prepare to celebrate Christmas in space.
NASA researchers received an extra special gift this holiday season: a box of Apollo moon soil to study in the new year.
Gas halos surround some of the earliest galaxies in the universe, providing a reservoir of cool gas that fuels the growth of supermassive black holes.
Astronomers have captured the first image of the most distant star-forming galaxy ever observed with a telescope.
While black holes are famously known for devouring any matter that gets too close, these cosmic behemoths may have a nurturing side, too.
Gravitational-wave astronomy may help researchers paint a more complete picture of black hole activity.
Despite the apparent shrinkage of clouds in Jupiter's Great Red Spot, the storm itself is still going strong, new research suggests.
The private spaceflight company Rocket Lab unveiled a new rocket-building robot designed to speed up manufacturing of Electron launch vehicles.
The workout routine astronauts use to prepare for space may also benefit cancer patients by reducing the long-term side effects of medical care.
Spaceflight causes changes in astronauts' brain structure and function during extended missions, a new study shows.
A bright fireball meteor streaked across the night sky above Missouri Monday (Nov. 11), passing over St. Louis' iconic Gateway Arch.
NASA's Mars 2020 rover was moved into a vacuum chamber and tested under Mars-like environmental conditions to prepare for its launch to the Red Planet next summer.
A new study shows how microgravity alters human heart muscle cells in space, helping astronauts better prepare for long-duration missions to Mars and beyond.