Astronomy news, observing guides, and the night sky.
The core of the brightest galaxy in the cluster Abell 402 contains a curious void. New observations suggest that an ultra-massive black hole could have excavated this feature.
Exploding stars have left their radioactive mark on our planet. Now scientists have found more evidence of a particularly violent event in Earth’s more ancient past.
New analysis reveals a tight relationship between two supernova remnants in the outer Milky Way.
The most recent interstellar visitor was crisscrossing our galaxy for some 10 to 12 billion years before it came near the Sun.
On its way to future encounters with Trojan asteroids, the Lucy spacecraft made a practice run past tiny asteroid 52246 Donaldjohanson on April 20, 2025.
The Moon as it will appear in an amateur telescope at 10 p.m. EDT Friday the 19th.
A star-forming galaxy in the early universe might have sent a ghostly particle known as a neutrino crashing into the ice at Earth’s South Pole, after an 11 billion-year journey…
On June 17th, much of North America can watch the Moon occult Venus in the daytime sky. All you need are binoculars.
The 18.6-year cycle of the lunar standstill belongs to the Moon. But recognizing it belongs to us.
A deep spectrum of a mysterious "little red dot" reveals a supermassive black hole cocooned in gas so dense it's opaque — but glowing in the infrared.