nat Latest articles by nat Planet X? New Evidence of an Unseen Planet at Solar System's Edge By nat published 25 May 12 An astronomer has proposed the existence of an unseen planet in the distant outskirts of the solar system. It would explain the peculiar motions of Kuiper belt objects. Planets Sign up for the Live Science daily newsletter nowGet the world’s most fascinating discoveries delivered straight to your inbox.Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors LATEST ARTICLES1Best spotting scopes in 2025 for birdwatching and wildlife observation 28 babies spared from potentially deadly inherited diseases through new 'mitochondrial donation' trial3'Ice cube' clouds discovered at the galaxy's center shouldn't exist — and they hint at a recent black hole explosion4Why do cats like concrete slabs? 5Largest known Martian meteorite on Earth sells for $5.3 million at auction
Planet X? New Evidence of an Unseen Planet at Solar System's Edge By nat published 25 May 12 An astronomer has proposed the existence of an unseen planet in the distant outskirts of the solar system. It would explain the peculiar motions of Kuiper belt objects.
