How long does it take Pluto to orbit the sun? Learn more about how this planet makes one lap around our Solar System.

Discover interesting facts about the sun, the solar system's central star that supports all life on Earth.

There are eight planets in the solar system, and each travels on its own path around the sun. But of these planets, which is nearest to the sun? Mercury is a strange little world. There are some ...

Scientists have identified an object about 700km wide inhabiting the frigid outer reaches of our solar system that might qualify as a dwarf planet, spotting it as it travels on a highly elongated ...

Summer gets its official start in the Northern Hemisphere with the arrival of the summer solstice. The sun will trace its ...

The European Space Agency's Solar Orbiter captured the first-ever images of the sun's south pole in March, which were ...

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

As it orbits the sun once every 25,000 years, the celestial body 2017 OF201 travels beyond the Kuiper Belt into a region thought to be largely devoid of objects ...

According to the National Weather Service, the summer solstice will occur on Friday at 10:42 p.m. Eastern time (it will be ...

The way comets behave in space may seem random, but new research suggests there’s more order behind the chaos than once ...

New research on the orbits of these mysterious asteroids near Venus stress the need for better space rock surveillance.

A swarm of large asteroids likely lurking around Venus could one day pose an "invisible threat" to Earth if left unchecked, ...