Hundreds of people who love the little planet that was dissed, gather every year in the Arizona town where Pluto was ...

For decades, many scientists believed that most of the water in our planet came from space, transported by meteorites and comets during the first moments of ...

Pluto has not completed a single orbit since its 1930 discovery. With a 248-year journey around the Sun, the dwarf planet will finish its first full circuit in 2178.

Pluto will complete its first orbit since 1930 in 2178, a historic 248-year space journey that spans generations of humans.

Hundreds of people who love the little planet that was dissed, gather every year in the Arizona town where Pluto was discovered. They celebrate scientific discovery, history and our solar system’s ...

Homo juluensis was identified as a possible new human species that lived in eastern Asia about 300,000 years ago and vanished ...

Chalk up another victory for “Conan the Bacterium”—a rugged germ that fresh research suggests could conquer the solar system.

Planetary systems such as our solar system take hundreds of millions of years to evolve. Since humanity has only existed for a sliver of that time, astronomers have only observed planetary systems at ...

When a new species is discovered, it's tempting to imagine an adventure novel, said Chan Kin Onn of Michigan State University. "Most people have this image of an intrepid explorer braving an isolated ...

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

The newly discovered object dubbed the Great Comet of 2026 may become visible to the naked eye during its close solar pass in April.

Deep under the Pacific Ocean, between 900 and 1,200 km deep, scientists have discovered something that doesn’t fit with what textbooks say about our planet.