Keith Cooper

JWST's detection of phosphine on a brown dwarf, also known as a "failed star," could have repercussions for the claimed detection of the molecule on Venus.

The discovery of the "hot Jupiter" exoplanet 51 Pegasi b on Oct. 6, 1995 changed the course of astronomical history.

The discovery strengthens the case for a new mission to orbit and land on Enceladus and search for evidence of life.

What about those previously studied plumes of methane and meteorites potentially stuffed with the fossils of Martian microbes?

The JWST has studied the chemical composition of a moon-forming disk circling a giant planet 625 light-years away.

Scientists are testing prototypes of tumbleweed rovers in a wind tunnel that show that Mars' winds are strong enough to push them.

The algorithm has already been tested on images from the Subaru telescope and will now be used on the Vera C. Rubin Observatory once science results begin to flood in.

The small chunk of rock could be telling us that many of the moon’s largest impacts happened over 4.25 billion years ago.

The star-forming region called Sagittarius B2 contains half of the galactic center's stars, yet only 10% of the gas.

Two galaxies connected by a bridge of hydrogen gas are falling into the Virgo Cluster.

The team's design uses fission reactions involving uranium to heat propellant.

Hayabusa2's new target, asteroid 1998 KY26, is just 36 feet (11 meters) across, which will make landing on it challenging.

The turning point seems to have been after 2008, which had the lowest amount of solar activity on record.

With a modest amount of thrust and power, a new ion engine system could get rid of 1-ton pieces of space junk in less than 100 days. Here's how it works.

The laser system provides real-time positional data on the huge cloud of space debris above our heads in low Earth orbit.

The James Webb Space Telescope caught the birth of an enormous star with particle beams cutting across a stretch of interstellar space.

A new low-cost concept for interstellar travel combines solar power with a slingshot, but it would take a long time to reach the stars.

One member of the cluster was previously believed to be the most massive star known, but is actually a triple star system of huge stars, all of which will go supernova.

A new concept for a next generation space telescope could provide an affordable breakthrough in the hunt for Earth's twin.

The Butterfly Nebula, which is a planetary nebula resulting from the death of a sun-like star, has been caught creating large dust grains that could form planets.

Although the existence of the warps is widespread, their origin is still a mystery.

The narrowest magnetic loops ever seen in the sun's corona have been imaged by the most powerful solar telescope on Earth.

A mysterious lunar landslide might have been caused by debris from a faraway crater-forming impact, new analyses of Apollo 17 moon samples suggest.

The impending merger of the two galaxies hints at what might be in store for the Milky Way and the Andromeda galaxy if and when they collide.

Astronomers have learned how to find supernova explosions in their earliest stages, giving us an unprecedented look at how these stars blow up.