Are we truly alone? With the Perseverance Rover already exploring the surface of Mars, Dr Lucy Kissick believes we are closer than ever to understanding how alien life could have survived on the Martian world's surface.

#Mars #PlanetExplorers

Best of Earth Science: http://bit.ly/EarthLabOriginals
Best of BBC Earth: http://bit.ly/TheBestOfBBCEarthVideos

This is a channel from BBC Studios who help fund new BBC programmes. Service information and feedback: http://bbcworldwide.com/vod-feedback-...