Astronomers at the Harvard-Smithsonian Center for Astrophysics have discovered a planet somewhat larger and more massive than Neptune orbiting a star 120 light-years from Earth. While Neptune has a ...

Using the James Webb Space Telescope (JWST), astronomers have characterized the atmosphere of a hot super-Neptune exoplanet designated WASP-166 b. As a result, they found that the atmosphere of this ...

The discovery: Water vapor in the atmosphere of planet TOI-674 b. Key facts: This recently discovered planet, a bit bigger than Neptune and orbiting a red-dwarf star about 150 light-years away, places ...

A super-Neptune orbiting a star is zipping through space at 1.2 million miles per hour—or potentially faster. Reading time 3 minutes A small star and its orbiting planet are flying through the Milky ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has discovered a new extrasolar planet orbiting a sun-like star. The newfound alien world, designated ...

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 our ...