Yet for millions of years, Mars at least had the opportunity for life to flourish in lakes, or the moist clays of river deltas. NASA hopes to robotically return pristine Mars rock samples home in ...

Sedimentary rocks, carved channels and even the remains of an ancient river delta, studied by NASA’s Perseverance rover, have shown how water once shaped the Martian landscape. After the ocean ...

Read More: NASA's New, $4 Billion Space Telescope Will Unravel a Great Cosmic Mystery “We’re finding places on Mars that used to look like ancient beaches and ancient river deltas,” said ...

Not far away in the Mississippi River delta system, middle-school students can stand on islands that emerged the year they were born. NASA is using high-tech airborne systems along with boats and ...

“We’re finding places on Mars that used to look like ancient beaches and ancient river deltas,” Benjamin Cardenas, a Penn State assistant professor of geology and study co-author, said in an ...