Hycean worlds, which are a possible kind of exoplanet with deep oceans surrounded by a thick envelope of hydrogen, could ...

Proxima Centauri, a star four light-years from the sun, shoots out a violent solar flare in this artist's depiction. Credit: NSF / AUI / NSF NRAO / S. Dagnello Only a few years ago, astronomers ...

Scientists have just discovered four small, rocky exoplanets orbiting Barnard’s Star, the nearest single star to our solar system after the Alpha Centauri system, NASA announced. Located only six ...

"L 98-59 c could be the first planet smaller than 2 Earth radii with a definitively detected atmosphere," a team of ...

These days, researchers commonly discover exoplanets, or planets outside our solar system. But sometimes there’s a special discovery, like an exoplanet right in our backyard — and that’s the ...

Astronomers have discovered two exoplanets around TOI-1453, a star about 250 light years away. These two exoplanets, a super-Earth and a sub-Neptune, are common in the galaxy, yet are absent from ...

The James Webb Space Telescope has directly observed the key chemical of carbon dioxide in planets outside of our solar system for the first time, scientists announced Monday. The gas giants are ...

The exoplanets whose mass and radius have been measured appear in gray on this graph. TOI-1453 b (orange) and TOI-1453 c (green) are superimposed. The less dense a planet is, the higher up on the ...