Astronomers have discovered a huge and previously unknown object entering our solar system that will reach the orbit of Saturn in 2031. It is possibly the largest body from the outer reaches of our solar system ever found to make such a close approach to the sun.
Known as 2014 UN271, it is estimated to be between 100 and 370 kilometres across. The object was spotted by the Dark Energy Survey (DES), a project using the Victor …
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