Something extremely weird is happening to our galactic neighbor. Scientists think they know why
The stars in the Small Magellanic Cloud aren’t behaving the way they should. A cataclysmic collision with another nearby galaxy may be the culprit
A boom in gravitational waves leaves scientists with more questions than answers
A new data release more than doubles the number of gravitational-wave candidate events—and reveals unexpected complexities of merging black holes
SpaceX now has more than 10,000 Starlink satellites in orbit
Once unfathomable, the milestone of a single company having 10,000 satellites operating overhead signals that the era of mega constellations is here to stay
Have astronomers found a runaway monster black hole or just a very weird galaxy?
Despite years of debate and follow-up studies, an odd streak of cosmic light still defies a final explanation. Is it a giant black hole screaming through intergalactic space?
The universe’s brightest supernovae are turbocharged by newborn magnetars
A new study explains how some supernovae are particularly dazzling—the glow from a magnetic, spinning ball of neutrons called a magnetar. An assist from Einstein is what settled the case
Stunning video shows huge fireball blazing over Europe
A large, bright meteor fell over Europe on Sunday, with some observers saying they could hear the rock’s explosive descent from the ground
Your zodiac sign is likely wrong. Here’s how to find the correct one
The science of the zodiac is more intriguing than astrology would have you think
It’s time to speak out against the unchecked growth of satellite megaconstellations
Satellites are wonders of modern technology that have improved all of our lives. But having more than a million of them in orbit could destroy our view of the heavens and seriously damage our planet
After four years of war, Ukrainian astronomy is battered but unbroken
Russia’s war has left many of Ukraine’s world-class observatories in ruins—but the besieged nation’s astronomers already have plans to rebuild and recover
See the moon turn blood red in a total lunar eclipse
A total lunar eclipse is set to grace the sky on Tuesday. Here’s how to see it
Eerie brainlike nebula captured in stunning new JWST images
Nebula PMR 1 looks uncannily similar to an electrified brain inside a semitransparent skull
This weekend, six worlds will align in a rare ‘planetary parade’
This weekend will offer a chance to see a rare celestial event—Mercury, Venus, Jupiter, Saturn, Uranus and Neptune all aligned in the sky like beads on a string