University of Copenhagen
Faculty of Health and Medical Sciences
November 17, 2022
Mars is called the red planet. But once, it was actually blue and covered in water, bringing us closer to finding out if Mars had ever harboured life.
Most researchers agree that there has been water on Mars, but just how much water is still debated.
Now a study from the University of Copenhagen shows that some 4.5 billion years ago, there was enough water for the entire planet to be covered in a 300-metre-deep ocean.