For the first time ever, astronomers have spotted evidence of a planet circling a superdense stellar corpse known as a white dwarf, a new study reports.
SpaceX is about to launch beer, "mighty mice" and much, much more to the International Space Station.
Hoag's object, which is a galaxy within a galaxy within a galaxy, has befuddled stargazers since astronomer Arthur Hoag discovered it in 1950.
Massive dust towers on Mars that formed during global storms may be 'space elevators' that contributed to the loss of the planet's ancient water, according to NASA's description of new research.
The European Space Agency has officially approved the Hera mission, which will assess the results of NASA's asteroid-walloping Double Asteroid Redirection Test.
A recent test of the ion engine that powers Japan's Hayabusa2 spacecraft went well, clearing the hardware for full-on operations soon, mission team members announced late last week.
A fiery explosion over the Australian desert may have been an ultra-rare minimoon, researchers think.
In a quiet orbit around the far side of the moon, three radio antennas are now outstretched, craning for whispers from a mysterious period early in the universe's history.
A new study has called into question the prevailing notion that the universe is "flat." The stakes of this cosmological debate are huge.
Scientists recently found a black hole so big that current theory strains to prove it exists, a new study reports.
While black holes are famously known for devouring any matter that gets too close, these cosmic behemoths may have a nurturing side, too.
NASA is trying to rebrand the spend-happy day after Thanksgiving, inspiring us to appreciate the wonders of the universe by contemplating its most extreme objects.
How time does fly: NASA's InSight Mars lander has now been on the Red Planet for a full (Earth) year.
Gravitational-wave astronomy may help researchers paint a more complete picture of black hole activity.
A new photo shows the solar system's second confirmed interstellar visitor in an impressive new light.
At some point, the rules of the subatomic give way to the rules of the macroscopic. But how? We're not exactly sure, and it's been a long, strange journey in trying to answer that question.
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