A 'Captured' Alien Planet May Be Hiding at the Edge of Our Solar Syst…

archived 28 Jun 2023 20:01:09 UTC

The cold and mysterious Oort cloud at the edge of our solar system may be hiding a rogue planet.

An international team of researchers recently simulated the unstable celestial mechanics of the early solar system. They found that there is a possibility that one or more planet-size bodies came to rest in the Oort cloud, a vast collection of icy objects stretching between a few hundred billion to several trillion miles from the sun, according to NASA. The new paper describing the work has been published to the preprint server arXiv and has yet to be peer-reviewed.