Interstellar comet 3I/ATLAS is now barreling away from the sun, never to return to the solar system. There's one more chance ...

The University of Arizona will serve as mission control for a newly launched space telescope designed to study distant ...

Learning how pronghorn survived the climate changes that ended the ice ages anddrove so many other large mammals to ...

The solar system is about to bid a permanent goodbye to a rare guest that has journeyed from the deepest reaches of the Milky ...

Optical proof of a tiny companion orbiting supergiant star Betelgeuse is hard to come by. Hubble just spotted new evidence.

Measuring around 41 feet in diameter, the asteroid is speeding towards our planet at more than 38,500 miles per hour.

The James Webb Space Telescope has delivered its clearest view yet of a supermassive black hole's immediate surroundings, ...

You can watch the northern lights from Finland, courtesy of Northern Lights Alert. Experience the northern lights from the ...

A geomagnetic storm made the northern lights — the aurora borealis — visible as far south as Alabama and New Mexico Jan. 19.

Today: Winter is the best season for finding bright stars. And if you only want to set aside a few minutes, 10 p.m. tonight ...

That’s only one problem. Your immune system also has an adaptive system of specialized immune cells and antibodies that attack and destroy invading microbes. This system remembers what those intruders ...