Last updated at 17:45

Earth-like planet confirmed

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Nasa scientists have confirmed the existence of the an Earth-like planet outside our Solar System.

It's called Kepler 22-b and is circling a star similar to our Sun about 600 light years away.

The planet is about twice the size of Earth, with a temperature of around 22C.

That temperature is just right for liquid water - something that's important to support life.