Could a 'rogue star' knock Earth out of orbit? Yes — and here's why it could be a good thing.
Favicon 
www.livescience.com

Could a 'rogue star' knock Earth out of orbit? Yes — and here's why it could be a good thing.

Earth will become too hot to handle in a billion years. There's a (very) remote chance a passing star could save us by knocking our planet back into the habitable zone.