Twelve newly confirmed moons bring Jupiter's total to 92, surpassing Saturn's 83 moons.
NASA astronomers used the Hubble Space Telescope to measure the mass of a white dwarf, an important step for understanding how stars die.
A series of laser flashes recently lit up the night sky above Mauna Kea in Hawaii. Experts say the lasers were emitted by a NASA spacecraft.
Scientists have discovered an extremely rare star system that is doomed to explode in a 'kilonova' caused by the merger of two neutron stars.
Researchers have detected fluctuations in Earth's magnetosphere created by the same tidal forces that the moon exerts on the oceans.
Eight signals from far-off stars probably aren't aliens, but the machine learning method that found them holds promise in the search for real extraterrestrials.
Researchers have created a never-before-seen form of ice with a disorganized structure and a density almost exactly that of liquid water.
A volcano-like eruption on the surface of a dead neutron star could explain its sudden slowdown and the slew of fast radio bursts that followed
Explore the cosmos and find your way around the night sky with this combination of classic titles and new entries, all in the best astronomy books.
The cosmic web is a gigantic network of crisscrossing celestial superhighways that connects nearly everything in the universe.
The only known filmed interview with physicist and Catholic priest Georges Lemaître, who originally proposed the Big Bang theory, has been found on a video that was lost nearly 60 years ago.
Tonight (Feb. 1), the green comet C/2022 E3 ZTF will make its closest approach to Earth since the age of the Neanderthals. Here's how to view it.
On Monday (Jan. 30), the moon will pass in front of Mars from the perspective of Earth in what's known as an occultation.
The green comet C/2022 E3 (ZTF) will make a close approach to Earth on Feb. 1/Feb. 2 before sailing off into deep space, possibly never to return.
Intergalactic gas clouds are slightly hotter than they should be, new research claims, and theoretical particles called 'dark photons' could explain it.