An annular eclipse and the summer solstice are both happening this weekend. But don't worry, it's not the end of days.
For the past few years, the possibility of a new (and big!) planet hanging around in the far outer solar system has tantalized scientists and the public alike. Is "Planet Nine" out there or not?
How fast is this nearby black hole spinning? A new measurement offers clues that could solve the old mystery.
An experiment buried underground in Italy has turned up a mysterious result, and a never-before-seen "axion" particle seems like the most likely explanation.
Europe's Trace Gas Orbiter spotted an emerald glow in Mars' wispy atmosphere, marking the first time the phenomenon has been spotted on a world beyond Earth.
Scientists aren't sure if space junk or a meteor caused a brilliant blue fireball seen across Western Australia.
Two researchers investigated the dynamics of Saturn's churning atmosphere to figure out what sorts of planetary fluid dynamics are creating its mystifying hexagon.
A new calculation posits that there are 36 intelligent alien civilizations sharing the Milky Way with humanity today, but it relies on some big assumptions.
Once again, physicists have confirmed one of Albert Einstein's core ideas about gravity and relativity — this time with the help of a neutron star flashing across space.
When SpaceX launched a Falcon 9 rocket into space Saturday (June 13), it delivered 58 Starlink satellites and three Planet SkySats into orbit. It also looked amazing.
In the next 24 hours, rockets from Interstellar Technologies, Rocket Lab and SpaceX will launch from three different countries in a space age triple-header. Here's how to watch.
Scientists hunting for neutral hydrogen — a rare molecule that predates every star in the universe — just took a step closer to catching their prize.
Scientists have generated an exotic form of matter in the unique microgravity environment aboard the International Space Station and are using it to explore the quantum world, a new study finds.
The world's largest atom smasher has "given birth" to a set of four ultraheavy particles — called top quarks.
A meteor lit up the night sky over Tennessee and neighboring states late Sunday (June 7), sparking 120 fireball sightings across 12 different nearby states and Canada.
Researchers have created a miniature version of supernova shock waves in a lab here on Earth to solve a long-standing cosmic mystery.
Astronomers have discovered an activity cycle in another fast radio burst, potentially unearthing a significant clue about these mysterious deep-space phenomena.