Astronomy

In our topsy-turvy universe, sometimes the farther away an object is, the bigger it seems to be

Proliferating satellites are beginning to harm the science work of the beloved Hubble Space Telescope and other observatories

A technique called interferometry can greatly magnify tiny objects on the sky, and is powerful enough to reveal the surfaces of nearby stars

Comets don’t just orbit our sun. “Exocomets” are common around other stars in the galaxy, too

NASA spacecraft across the inner solar system captured new views of Comet 3I/ATLAS—the third known interstellar object

Although these findings from JWST are yet to be confirmed, they mark the closest astronomers have come to locating the universe’s most ancient stars

The sun’s current 11-year activity cycle has already peaked—but extreme outbursts from our star may still be in store

A thin crescent moon and dark skies could give watchers a clear view of this astronomical event

The same region on the sun that’s responsible for this week’s stunning auroral display just erupted in another powerful solar flare early on Friday morning

Centuries before other galaxies were known to exist, astronomers called them “spiral nebulas.” Today the defunct term still sparks confusion

A severe geomagnetic storm brought spectacular auroras to much of the U.S. on Tuesday night

The sun just spat out several coronal mass ejections that could trigger a serious solar storm on Wednesday