If there is an absolute law in the universe, it’s that nothing can travel faster than the speed of light. For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of ...

The most distant galaxies in this deep field image from the James Webb Space Telescope appear as small, faint dots—and are receding from us faster than the speed of light due to cosmic expansion. If ...

The motions of stars in the Milky Way have revealed a giant outward ripple, set off by a massive event sometime in our galaxy ...

Our solar system has an unexpected visitor, and it has just put its foot on the accelerator. An interstellar object, dubbed ...

The new Vera C. Rubin Observatory captured a video of Comet 3I/ATLAS zipping through space during its testing phase. Credit: RubinObs / NOIRLab / SLAC / NSF / DOE / X screenshot A new telescope built ...

The interstellar comet 3I/ATLAS is barreling toward its closest point to the sun as perihelion looms on Oct. 29. How different will it look when it reappears on the other side?

"This is like a cosmic lighthouse lit by a wandering black hole." New research suggests that not all feeding massive black holes sit stably at the heart of their home galaxies. A team of astronomers ...

As just one of all the living creatures on Earth, you're along for the ride as our planet constantly moves in two major ways. This article was originally published at The Conversation. The publication ...

Aliens are visiting our solar system. Not little green men, sadly, but natural alien objects—cosmic bodies such as comets and asteroids born elsewhere in the galaxy that zip by the sun as they drift ...

The younger black hole, the product of a cataclysmic cosmic event known as a black hole merger, was first spotted in 2019. Now, about 6 years later, a team of international researchers led by the ...