Recent research has unveiled a troubling and persistent mystery at the heart of modern cosmology: the universe is expanding ...

The James Webb Space Telescope has captured a mid-infrared picture of Sagittarius A*, filling in a long-standing gap in ...

On this week's episode: ancient human ancestors didn't eat meat, carbon caught in a cosmic conveyer belt, robotic bees pollinating crops, and the incredibly rare marsupial mole gets a checkup.

Our sun is a lonely star. At least half the stars in our galaxy have binary companions. This was nicely illustrated in the ...

Andromeda is the closest large galaxy to the Milky Way. And it is getting closer, as the two will merge in several billion ...

This is the largest photomosaic yet assembled from Hubble Space Telescope observations. It is a panoramic view of the Andromeda galaxy, located 2.5 ...

Messier 31 is located 2.5 million light-years away from Earth and was a much bigger target in the sky than the galaxies ...

Astronomers are celebrating the completion of a 2.5-billion-pixel panoramic picture of the entire Andromeda Galaxy. The team includes several UC Santa Cruz researchers who made significant ...

These massive currents carry material on a journey through and around star-forming galaxies before they settle and form stars ...

The James Webb Space Telescope has spotted one of the earliest and most distant supernovas, marking the death of a stellar ...

This NASA/ESA Hubble Space Telescope image peers into the dusty recesses of the nearest massive star-forming region to Earth, ...

A little-known chapter of the Hubble Space Telescope’s history is a reminder of the risks of looking at the sun ...