Skygazers across Texas and beyond can catch a glimpse of six planets arcing across the night sky this week in a so-called ...

The radius gap between super-Earths and sub-Neptunes Mass measurements using transit timing variations (TTVs) N-body simulations to model orbital dynamics and stability Atmospheric loss via ...

Microscopic crystals extracted from meteorites could help settle a debate about the birth of our patch of the Milky Way.

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar system.

New research using NASA’s James Webb Space Telescope examines the maximum sizes of gas giant exoplanets, measuring chemical compositions and formation processes in the HR 8799 system.

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the third known interstellar comet ever spotted. When scientists turned NASA’s ...

The largest moon of Saturn is bigger than Mercury, yet for all its conspicuousness, scientists don't know exactly how it came ...

Scientists identify exoplanet candidate HD 137010 b, a possible Earth-size world orbiting a Sun-like star 146 light-years away ...

Any star with a name like Betelgeuse must be remarkable. The unusual name is Arabic for “armpit.” It marks the shoulder ...

Our familiar, archetypal solar system has warm, rocky worlds like Mercury and Earth orbiting close to their star and gas giants like Jupiter and Saturn sprawled out in more distant orbits. Researchers ...

Venus’ surface has long been hidden beneath thick clouds and sparse data, but new research is beginning to illuminate what ...

A small red dwarf star in the Milky Way has drawn attention after astronomers mapped four closely orbiting planets around it. The system, known as LHS 1903, does not follow the layout many scientists ...