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 ...

The planet Neptune, as seen by NASA’s Voyager 2 probe during a flyby in August of 1989. In astronomy, 180 years is a very long time—maybe not for the goings-on in the universe but certainly for our ...

While the Perseverance rover continues to capture amazing images of the Martian surface, we also look back at Voyager 2's ...

"I had been waiting my entire career for Webb so that we could meaningfully characterize the atmospheres of these smaller planets." When you purchase through links on our site, we may earn an ...

Beyond our solar system, sub-Neptunes — gassy planets larger than Earth but smaller than Neptune — reign as the most common type of exoplanet observed in our galaxy. Despite their prevalence, no such ...

This artist’s concept shows what the hot sub-Neptune exoplanet TOI-421 b could look like. NASA, ESA, CSA, Dani Player (STScI) Some of the most common exoplanets in our galaxy are also the most ...