When the 3 rd -century Christian theologian Origen of Alexandria attempted to account for the unusual movements of the Star ...

A Star Trek–inspired idea by Miguel Alcubierre kicked off decades of theory and experiments as scientists pursue plausible ...

The findings, described in the journal Nature, push back the earliest known date for controlled fire-making by roughly ...

There are a host of celestial events to get excited about next year – including a total solar eclipse. Abigail Beall is ...

With major eclipses, brilliant supermoons, and lineups of five or more planets, 2026 offers something awe-inspiring in every season. Here’s what to watch for.

Auroras may be visible from Alaska to New York as an incoming coronal mass ejection is expected to slam into Earth today.

Thanks to a recent geomagnetic storm, some Americans will be able to see the northern lights on Dec. 8 and Dec. 9.

NASA's Hubble Space Telescope caught a glimpse of 3I/ATLAS – again. Here's a look at the latest photo of the intriguing ...

Dark matter is special in that it doesn't emit, absorb or interact with light, so science had to find a more creative way to ...

The same geomagnetic storm that makes aurora sightings likely can disrupt power systems, navigation signals, and satellites.

If you are into planets and also like to get up pre-dawn (much easier in the Northern hemisphere now that it is winter here), ...

Megaconstellations” of vast numbers of satellites could threaten space-based astronomy, scientists have warned. In recent years, companies such as Elon Musk’s SpaceX have launched thousands of new ...