A new study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune in size, finding evidence that it could be a giant rocky planet shrouded in a thick, hot atmosphere. TOI-270 d is ...

By Will Dunham WASHINGTON (Reuters) -Astronomers have spotted a small rocky planet that orbits perilously close to its host ...

Researchers have developed a new coronagraph that could make it possible to see distant exoplanets obscured by light from their parent stars.

TOI-270 d, located just 73 light years away, could be key to understanding a new class of planets. A study revealed it may be a giant rocky planet with a thick, hot atmosphere. NASA’s JWST detected ...

K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know ...

Scientists have found further evidence of possible biosignature gases on the nearby exoplanet K2-18b, strengthening the case that it could support alien life. In 2023, researchers using NASA's ...

In a first, a pair of unusual stars has been revealed to have an equally unusual companion – an exoplanet that orbits them perpendicularly. Astronomers may think they know what is normal for ...

has been categorized as a “Hycean” planet—a type of exoplanet that may host deep, hydrogen-rich oceans overlying a rocky or icy core. While its mass—about 8.6 times that of Earth ...

SEE ALSO: Scientists haven't found a rocky exoplanet with air. But now they have a plan. Further studies of exoplanet K2-18b, which orbits a cool dwarf star in its so-called "habitable zone ...

not much consideration has been given to these stars’ ability to host habitable exoplanets,” Aomawa Shields, a professor of physics and astronomy at U.C. Irvine, explained in a statement. “Our ...

This illustration shows an exoplanet orbiting around two brown dwarfs –– objects bigger than gas-giant planets but too small to be proper stars. ESO/M. Kornmesser Astronomers have discovered a ...

One of the major challenges of modern astrophysics is understanding the formation and evolution mechanisms that produce either gaseous planets or rocky planets. This work is published in Astronomy & ...