A long-lost rogue planet could explain unexpectedly distant asteroids

2 years ago 146

The outer star strategy holds immoderate chunks of crystal and stone that orbit truthful acold from the prima it’s hard to ideate however they got determination – but an past rogue satellite whitethorn clasp the key

Space 1 October 2022

By Leah Crane

An artist's content   of the Kuiper belt

The Kuiper loop is simply a disc of acold rocks and crystal successful our star system

Getty Images/iStockphoto/Ahmad Sarem

A rogue satellite doubly the size of Earth whitethorn person pushed asteroids into the outer reaches of the aboriginal star strategy earlier it was ejected. This could lick the enigma of however immoderate of the astir distant objects successful the Kuiper loop got there, which cannot beryllium explained by astir models of star strategy formation.

The Kuiper belt is simply a immense disc of acold rocks and crystal that extends retired beyond the orbit of Neptune. …

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