K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know ...

Presented by Sir David Attenborough, The Green Planet takes viewers on a journey into the hidden world of plants, to experience it from their perspective and on their timescale. The result is a ...

And although the first sign of possible extraterrestrials detected in the cosmos didn't come in the form of little green aliens flying ... a distant ocean-covered planet named K2-18b is likely ...