Two big pieces of space junk are zooming toward a close approach that will occur Thursday (Oct. 15) at 8:56 p.m. EDT (0056 GMT on Oct. 16), according to California-based tracking company LeoLabs.
There's a rising call for "unidentified aerial phenomena" to be studied scientifically, perhaps even using satellites to be on the lookout for possible future events.
Celestron's NexStar 130SLT computerized telescope is on sale for $333.16 for Amazon Prime Day 2020. That's 33% off its regular price.
This supermassive black hole gobbled up a star in full view of Earth's telescopes, and could unlock secrets of how these monsters feed.
In one upside-down, hypothetical version of the universe, a bizarre type of black hole could exist that is stranger than an M.C. Escher sketch: charged black holes.
The annual Draconid meteor shower peaks Wednesday evening (Oct. 7) — but the bright, gibbous moon will wash it out.
SpaceX delivered its 13th batch of Starlink satellites to orbit Tuesday (Oct.6), following a two-week delay due to bad weather.
Something pulled the outer layer of Cassiopeia A off before it detonated to form this gorgeous supernova. But what?
The Nobel Prize in physics has been awarded to three scientists for their work involving one of the cosmos's most mysterious, darkest, secrets — black holes.
A robotic Cygnus spacecraft successfully blasted off from Virginia today (Oct. 1) carrying nearly 4 tons of gear, including a new space toilet, to the International Space Station.
Researchers have performed one of the most precise measurements yet to determine the proportion of matter in the universe.
A viable nuclear fusion reactor — one that spits out more energy than it consumes — could be here as soon as 2025.
Something is showering gold across the universe. But no one knows what it is, and key theoretical explanations are falling apart
The launch of a U.S. spy satellite atop a powerful Delta IV Heavy rocket was called off in the final seconds late last night (Sept. 30), mirroring the outcome of an attempt a month ago.
The U.S. government is putting something big and secret in orbit tonight (Sept 30). Here's the little we can glean from public information.