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 ...

Was there ever a planet closer to the Sun than Mercury? Explore the captivating theory of Vulcan, a world that has challenged astronomers' understanding of the solar system for decades. Donald ...

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 ...

On Earth, depending on where you are, the analemma can be at different angles, though it always traces out this ...

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 ...

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

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