At the heart of our galaxy lies a cosmic puzzle: although the Galactic Center is packed with star-making material, massive ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

Webb has captured a frigid exoplanet in a wildly tilted orbit, revealing a system shaped by past planetary violence and ...

Given just how big space is, the solar system seems like it shouldn't be too mysterious. But there are actually plenty of ...

The exoplanet — named 14 Herculis c, or 14 Her c for short — orbits a sunlike star about 60 light-years from Earth in the ...

An international team of astronomers including researchers at the University of Arizona Lunar and Planetary Laboratory has ...

A near-complete census of our interstellar neighborhood hopes to answer how stars, brown dwarfs and rogue planets form ...

Scientists have scored a pristine view of a pair of exotic worlds orbiting a star more than 300 light-years away — one with ...

A new "Tatooine-like" planet outside the solar system may orbit two failed stars, scientists reported Wednesday.Related video above: The dark energy pushing our universe apart may not be what it ...