Sedna will reach its closest approach to the Sun in 2076, providing a remarkable space-faring opportunity that won’t come ...

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

In the outer reaches of our solar system, far beyond the orbit of Pluto, lies Sedna, one of the most mysterious objects ever ...

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

Our solar system is a pretty wild place, full of amazing stuff. From the giant Sun to the tiny rocks floating around, there’s ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

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

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

OF201, the object belongs to the same all-star family as Pluto: dwarf planets. Its diameter, roughly 435 miles (700 km), is half Pluto’s, ...

The dwarf planet's existence also opens the likelihood of many more like it in our solar system waiting to be found ... Its discovery was "not very different from how Pluto was discovered," said Sihao ...

Scientists have unlocked one of the solar system's many secrets from an unexpected source: a planetarium show.