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

The Sun, our life-giving star, is slowly dying. In about 5 billion years, it will exhaust its fuel and transform into a red giant, altering the solar system forever. But long before that, the Sun’s ...

Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid before it drifts ...

Passing stars could trigger instability across the solar system, resulting in Earth being hauled out of its orbit.

The James Webb Space Telescope (JWST) has discovered that a hazy sky over frozen Pluto is helping to cool the dwarf planet's ...

Mercury is notoriously difficult to see from Earth, thanks to its proximity to the Sun. But on July 4, Mercury reaches its ...

The James Webb Space Telescope (JWST), operated by NASA, has uncovered intriguing new details about Charon—Pluto’s largest ...

One Pluto year equals 248 Earth years. The Disney dog was named after the dwarf planet (not the other way around). Technically, a Pluto system space elevator is possible.

What processes during the formation of Pluto's largest moon, Charon, potentially led to it having cryovolcanism, and even an ...

A passing star could fling Earth out of orbit. Distant Pluto is in even bigger trouble, simulations suggest.