SCIENTISTS believe they have uncovered evidence that a huge river flowed on Mars in the past.
Researchers say rocks on the planet look to have been formed by flowing water and they are now debating what kind of river it was.
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The “first of its kind evidence” came from images sent by Nasa’s Perseverance Mars Rover.
Libby Ives from Nasa said it appeared a “high-energy river” had run through the area.
She added of the find: “It’s been a delight to look at rocks on another planet and see processes that are so familiar.”
A key objective for Perseverance’s mission on Mars is astrobiology.
This includes the search for signs of ancient microbial life.
The rover will characterise the planet’s geology and past climate.
It will also pave the way for human exploration of the Red Planet.
Nasa’s Jet Propulsion Laboratory built and manages operations of the Perseverance rover.
