Giant Exoplanets in HR 8799 System Likely Formed Like Jupiter and Saturn The first exoplanet was discovered in the 1990s, but ...

For years, astronomers have sought a way to directly observe the atmospheres of exoplanets, worlds orbiting distant stars.

The JWST has spotted the presence of carbon dioxide on HR 8799’s four known planets, part of a system astronomers use to ...

New connections discovered between the Sun's photosphere and CI chondrites meteorites, providing clues about the origin of materials.

The HR 8799 system, 130 light years from Earth, is only 30 million years old -- just a baby compared to our solar system's 4.6 billion years.

New James Webb Space Telescope (JWST) images show the first carbon dioxide-containing planet discovered outside of Earth’s ...

NASA's Webb telescope has captured images of multiple planets in a nearby star system, confirming that Webb can infer exoplanet atmospheres' chemistry.

Astronomers used the James Webb Space Telescope to directly capture images of the planets in the star system HR 8799, which ...

Studying young gas giant exoplanets' compositions and orbits could help us better understand how our own solar system's gas ...

Studying young gas giant exoplanets' compositions and orbits could help us better understand how our own solar system's gas ...

The gas giants outside our solar system are not capable of hosting extraterrestrial life, but do offer clues in a lingering ...

Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...