Some scientists think they discovered a new dwarf planet at the edge of the solar system, so far away that it takes around 25 ...

The giant planet, named TOI-6894b, was spotted using NASA’s Transiting Exoplanet Survey Satellite, or TESS. The work was led ...

Scientists' best explanation for how planets form is called the core accretion theory. The birth of a planetary system begins ...

Astronomers have found that planet mass is about 17% of the mass of Jupiter, or about 53 times the mass of the Earth. The ...

A small red dwarf star is challenging our knowledge of how planets form by coexisting with a massive exoplanet, much like a ...

The Milky Way may merge with the Large Magellanic Cloud in 2 billion years, not Andromeda, contrary to previous findings.

Astronomers are stunned by a giant planet orbiting a tiny red dwarf star. This rare discovery defies existing theories and ...

Screening can now determine their risk for an ever-growing list of conditions — including ones we can’t do much about.