New Mars theory casts doubt on planet's habitability
Sunday, September 9, 2012 - 22:00
in Astronomy & Space
A study of clays suggests they might have been formed in hot magma rich in water — too hot to support microbial life. A Caltech planetary geologist is coauthor.A new theory is pouring some cold — actually, some really hot — water on the idea that Mars could have been habitable in the past.