Almost 10 years ago, a NASA spacecraft was able to take several photos of Pluto, known for decades as a planet before it was ...

Four of Earth’s neighbors are about to appear in a planetary alignment. Those four planets — Mercury, Venus, Neptune and ...

As well as that, April on Pluto is a month-long celebration of Earth Day, with the streamer releasing a bunch of breathtaking nature documentaries shining a light on the planet's amazing wildlife.

Its name is Ceres. This little rock is around 590 miles (950km) long and its days are roughly nine Earth hours. Since Ceres is the fifth planet from the sun, that bumps Pluto out to number ten.

Convection processes beneath Venus' scorched surface may help explain the planet's many volcanoes, a new study reports.

A powerful new observatory is the best hope yet for finding the elusive Planet 9, a large planet that some scientists say is ...

Pluto was once called the ninth planet, but in 2006, scientists changed its status to a dwarf planet. A planet must clear its orbit of other objects, but Pluto shares its space with many small icy ...