Extra-terrestrial life 'unlikely', say scientists

Planet called "Gliese 581e"

Here's a word to impress people with - abiogenesis. It means the start of life from absolutely nothing.

That's what scientists from Princeton University in the US have been studying - they're trying to work out if life exists on other Earth-like planets.

The experts studied planets including Kepler 22b, Kepler 20e and 20f, which are hundreds of light years away.

And their conclusion? We're probably being too optimistic about finding life elsewhere - it's very unlikely!

But the scientists still think we should carry on looking!

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