For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

The Sun sends out a constant flow of charged particles called the solar wind, which ultimately travels past all the planets ...

One hypothesis suggests that a rogue planet, with a mass between one and two times that of Earth, may have altered their ...

The researchers said 2017 OF201 was identified in observations by telescopes in Chile and Hawaii spanning seven years.

Astronomers anticipate an unprecedented view of the solar system as the Rubin Observatory begins to scan millions of hidden ...

(Courtesy: NASA/JPL-Caltech/R. Hurt (SSC-Caltech)) A hidden planet with a mass about 1.5–3 times that of Earth could be lurking at the edge of the solar system, according to computer simulations done ...

Languages: English, Spanish Comet C/2022 E3 (ZTF), which is set to make a close approach to the Earth on Wednesday, may have originated in a mysterious cloud at the edge of the solar system.

When they left Earth in ... Those images – taken on Valentine’s Day – were the last images taken by the Voyager spacecraft, and represented a look at our solar system as seen from the ...

The spacecraft's tilted orbit will allow scientists to investigate the mechanisms behind space weather that impact crucial ...

Now, New Horizons has a third chance to revolutionize how astronomers see the distant parts of our solar system ... edge of the belt that’s nearly impossible for scientists to explore using ...