Antarctic pond may yield Mars water clues

Feb. 7, 2013 at 5:28 PM   |   Comments

PROVIDENCE, R.I., Feb. 7 (UPI) -- Earth's most unlikely body of water, in frigid Antarctica, is liquid only because its salt content -- the highest on Earth -- keeps it that way, scientists say.

Don Juan Pond, located in the freezing McMurdo Dry Valleys, one of the coldest and driest places on Earth -- and with similarities to the frozen deserts of Mars -- could have implications for understanding water flow on Mars both in the past and maybe in the present, they said.

A research team led by Brown University geologists has discovered how the pond gets the salty water it needs to exist.

The scientist have determined water sucked out of the atmosphere by parched, salty soil is the source of the saltwater brine that keeps the pond eight times more salty than the Dead Sea and keeps it from freezing, a university release said Thursday.

Antarctica is an excellent model for the cold, dry desert of Mars, and the findings about Don Juan Pond and how it stays liquid at temperatures far below freezing could offer clues about the possibilities for flowing water on Mars, the researchers said.

"Broadly speaking, all the ingredients are there for a Don Juan Pond-type hydrology on Mars," Brown geologist James Dickson said. "It's not likely that there's enough water currently on Mars for the water to form ponds, but stronger flows in Mars's past might have formed plenty of Don Juan Ponds."

© 2013 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
Recommended UPI Stories
Featured UPI Collection
2014: The Year in Music [PHOTOS]

2014: The Year in Music [PHOTOS]

Most Popular
Whale spotted in Virginia's Elizabeth River
Navy aviation tests combined unmanned, manned operations
Bill Gates to Mark Zuckerberg: I'll take the ice bucket challenge, and improve it
Latvia boasts world's first net for migrating bats
Endangered bats find sanctuary in Vermont power plant
Trending News