One of seven Earth-sized planets, TRAPPIST-1d, caught the attention of NASA researchers and is one of the promising planets ...

An international team has made a significant breakthrough in understanding the tectonic evolution of terrestrial planets.

Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...

A newly identified tectonic "regime" may rewrite our understanding of how rocky worlds evolve, scientists report in a new ...

The International Astronomical Union (IAU) defines a planet as a celestial body orbiting the Sun, possessing sufficient mass for a nearly spherical shape, and having cleared its orbital neighborhood ...

Illustration of the planet 55 Cancri e, also called Janssen. The search for exoplanets—worlds that orbit stars other than our sun—may be focused on discovering another Earth, but it continues to ...

Artistic concept of the PDS 70 disk. JWST observations detected water in the inner disk, where normally terrestrial planets form. Two gas giant planets carved a wide gap in the disk made of gas and ...

find brings the number of extrasolar planets to 100. And with this total, astronomers are beginning to see patterns in planet characteristics. “When we first started out, we found planets close in to ...

Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) have confirmed the discovery of two rocky exoplanets orbiting a nearby K-type star, designated TOI-2322. The results, published on ...