Astronomers have discovered a planetary system that appears to flip one of astronomy's most reliable rules on its head.

NASA has announced the discovery of an Earth-like planet orbiting a Sun-like star that shares several other similarities with ...

Astronomers have discovered a potentially habitable new planet that is around 146 light-years away and is actually remarkably similar to Earth with just one stark difference: it could be colder than ...

Relative sizes of the newly discovered habitable-zone planets and Earth. Left to right: Kepler-69c, Kepler-62e, Kepler-62f and Earth (except for Earth, these are artists' renditions). Image credit: ...

Astronomers have uncovered a distant planetary system that flips a long-standing rule of planet formation on its head. Around the small red dwarf star LHS 1903, scientists expected to find rocky ...

Astronomers have identified a giant planet circling a tiny red dwarf star at a distance so extreme that it sits about 690 times farther from its star than Earth is from the Sun. The discovery pushes ...

Since the 1990s, scientists have discovered approximately 6,100 planets outside our solar system, called exoplanets.

An infrared image shows a brown dwarf discovered by astronomers using the W.M. Keck Observatory and Subaru Telescope on Maunakea on Feb. 23, 2024. Data from both the observatory and telescope ...

Astronomers on Mauna Kea found the first space object on which NASA’s Roman Space Telescope can test its imaging technology. The Hawaiian Council will be on Kauai Monday to continue its statewide ...