Astronomers are now regularly detecting planets thousands of light years from Earth – but have we missed one in our own Solar System?

An artist’s impression of Cha 1107-7626 accreting material ...

Although it’s by no means certain, scientists are slowly accumulating evidence that life once existed on the Red Planet

We humans are always wondering whether we’re alone in the Universe. But what if we are one of a long line of species that were around long before our planet even existed? This intriguing idea, that li

Amazing answers to your curious questions

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