Science
Perseverance Mars rover: how to prove whether there’s life on the red planet – The Conversation UK
Methane gas in the atmosphere is a tantalising hint suggesting that life could exists on Mars.

Well soon be able to properly start asking the question: Are we alone in the universe? Nasas next major mission, the Mars 2020 Perseverance rover, will land on the surface on February 18. Following a complex landing procedure, it will get started on one of its main goals searching for life on Mars.
The rover has two ways of gathering samples. It can either analyse them with its on-board laboratory or it can save them for return to Earth by future missions. But what exactly is it looking for, and…
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