NASA must again stop work on its human moon lander partnership with SpaceX due to a Blue Origin lawsuit, further risking the agency's tight timeline to return astronauts to the moon.
Chinese astronomers hope to establish a major observatory program on the roof of the world, the Tibetan Plateau, with new research arguing for pristine observing conditions nestled in the uplands.
SpaceX's Starlink satellites are involved in about 1,600 close encounters between two spacecraft in low Earth orbit every week, according to available data. That’s about 50% of all such incidents.
Astronomers discovered a 3,000-light-year-long 'break' in the Milky Way's Sagittarius spiral arm, jutting out at a wild angle.
Scientists used Saturn's famous rings as a seismograph to study processes in the planet's interior. The researchers found its core is like a soup consisting of rocks, ices and metallic fluids.
Theories that try to explain these big metaphysical mysteries fall short, making agnosticism the only sensible stance.
Here's the historical significance of the black-and-white photo that Elon Musk tweeted showing SpaceX's next Starship prototype.
The particles used were spooky virtual particles, conjured from a disturbance between two electromagnetic fields.
Astronomers think they have established a new way to calculate the size of supermassive black holes: by studying the feeding patterns of these invisible giants.
Sun-exploring spacecraft Solar Orbiter has captured this video of a glowing crescent of Venus as it flew past the planet during a gravity-assist flyby on Monday (Aug 9).
NASA's Perseverance rover's first sample collection didn't go as planned due to trouble with a "unique" and unexpectedly powdery Mars rock.
If the possibility of an asteroid called Bennu slamming into Earth a lifetime from now was keeping you up at night, NASA scientists think you can rest a little easier.
An Indian rocket carrying a new Earth-observation satellite for the Indian Space Research Organisation (ISRO) suffered a catastrophic failure shortly after launching early Thursday (Aug. 12).
Astronomers say a weird star careening through the Milky Way could have survived the explosive powers of a supernova.
Because of anticipated delays in spacesuit development, it is "not feasible" for NASA to land humans on the moon by the agency's hopeful deadline of 2024, a report has found.