The Artemis II mission, which took four US astronauts around the Moon and to a record-breaking distance from Earth, was a reminder of how little we know about the satellite’s far side. Now scientists ...

Planets, like those in our solar system, form in a bottom-up process where small bits of rock and ice clump together and grow larger over time. But the heftier the planet, the harder it is to explain ...

The JWST discovers an impossible anomaly on TOI-5205 b and challenges everything we thought we knew about giant planets.

NASA reveals that Jupiter's size is smaller and flatter than previously thought, changing key models of the current Solar ...

Pluto's 2006 status change from planet to dwarf planet is still a sore subject for many, including a fourth grader in Tampa, ...

For several days this month, Saturn, Mars, and Mercury appear just degrees apart before sunrise—close enough to watch their ...

An exoplanet, TOI-5205 b, which is almost as large as Jupiter, orbits a small red star. By many estimates, this red star ...

Astronomers have discovered a new class of exoplanet that defies traditional categories of planetary classification. In a groundbreaking study published in Nature Astronomy, researchers led by the ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Illustration of the Earth-like exoplanet Proxima Centauri b orbiting the star Proxima ...

Scientists have discovered that a highly unusual giant planet—sometimes called "forbidden"—could have an atmosphere with ...

Scientists have uncovered a surprising way to study the harsh space weather around young M dwarf stars. Mysterious dips in starlight turned out to be massive rings of plasma swirling in the stars’ ...

Planets are always lined up along the same celestial path, so this “parade” is all about timing Six planets will appear along the same stretch of sky just after this weekend, with the best views ...