On Jan. 15, 2025, the Gaia spacecraft took its last image. Then the craft ran a final round of engineering tests, fired its ...

A new study shows how Milky Way chemical tracks emerge from shifting star formation and gas supply, reshaping ideas about the ...

NASA's Nancy Grace Roman Space Telescope team has released detailed plans for a major survey that will reveal our home galaxy, the Milky Way, in unprecedented detail. In one month of observations ...

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

From our vantage point inside it, the Milky Way can feel infinite, a hazy river of light that wraps around the sky. Yet when ...

Astronomers have directly observed a free-floating planet, comparable in mass to Earth, roaming the Milky Way. Discovered via ...

With sapphire waterfalls, lava rain and orbits around dead stars, these distant worlds push the limits of what’s possible.

The comet is the 3rd interstellar object ever detected and got its name from the ATLAS telescope that discovered it. NASA officials have rejected conspiracy theories that the object could be an alien ...

Well, you’ve done it again, Universe. You’ve gone and given us another batch of top-notch discoveries. We guess we should thank the fine folks with those massive telescopes, too. Their lifelong quest ...

The New Year begins with the nearly full Moon at perigee in the early afternoon. Two days later –– at full Moon –– Earth is at perihelion, its closest point to the Sun.

What can sororities, #RushTok and influencer-student megastars like the Darnell sisters tell us about US girlhood? We visit ...

Hypervelocity stars have, since the 1920s, been an important tool that allows astronomers to study the properties of the ...