Ancient Martian lake fed by groundwater
A U.S. spacecraft orbiting Mars has provided evidence of an ancient crater lake fed by groundwater, adding further support to theories that the Red Planet may once have hosted life, NASA said.
Spectrometer data from NASA’s Mars Reconnaissance Orbiter (MRO) shows traces of carbonate and clay minerals usually formed in the presence of water at the bottom of the 1.4-mile (2.2-kilometer) deep McLaughlin
McLaughlin Crater. The area around the curved features likely contains clay and carbonate minerals that may have formed from a past interaction with water.
"These new observations suggest the formation of the carbonates and clay in a groundwater-fed lake within the closed basin of the crater," NASA said of the findings, which were published in the online edition of Nature Geoscience.
Lake lacks inflow channels
"Some researchers propose the crater interior catching the water," the space agency said, adding that "the underground zone contributing the water could have been wet environments and potential habitats."
The crater lacks large inflow channels, so the lake was likely fed by groundwater, scientists said.
The latest observations "provide the best evidence for carbonate forming within a lake environment instead of being washed into a crater from outside," said Joseph Michalski, lead author of the paper.
Low elevation points to groundwater, too
The 57-mile-wide (90 kilometre) crater sits at the low end of a regional slope several hundreds of miles long and, as on Earth, groundwater-fed lakes would be expected to occur at low elevations.
NASA’s Mars rover Curiosity has been exploring the planet’s surface since its dramatic landing on August 6, collecting rock samples and beaming back rare images in anticipation of an eventual manned mission.
MRO scientist Rich Zurek, of NASA’s Jet Propulsion Laboratory, said the latest findings indicate "a more complex Mars than previously appreciated, with at least some areas more likely to reveal signs of ancient life than others."
Article from: cosmosmagazine.com
Tune into Red Ice Radio:
David Talbott - Lightning Scarred Planet Mars & The Electric Sun
David Talbott - Hour 1 - Symbols of an Alien Sky
Wallace Thornhill - The Electric Universe
Alfred Webre - Mars and Moon Bases, Time Travel, Teleportation, Aliens & Genetic Alteration
Mike Bara - Dark Mission, The Occult NASA Moon Mission
Odd Mars ’Flower’ & Snakelike Formation Spied By NASA’s Curiosity Rover
Mars once had water warm enough to sustain life
Life on Mars? Scientists hope to find it by decoding Martian DNA - ’We Can Rebuild Them’
Latest News from our Front Page
Pressure from the United Patriots Front Stops Mosque Plan
Pressure from the United Patriots Front appears to have killed off a mosque development in Narre Warren North.
The City of Casey council now looks likely to withhold planning approval for the development in a special meeting set for Tuesday night.
A council report, to be considered by councillors on Tuesday, recommends that the approval be blocked.
The mosque opponents’ cause has been helped by councillor ...
Police face questions over the influence of the Freemasons
South Yorkshire Police today face questions over whether powerful 'secret society' the Freemasons held sway over the force at the time of Hillsborough.
Families of victims say that officers who were Masons were promoted into powerful positions despite being ill-equipped, including match commander David Duckenfield.
Duckenfield told the fresh inquests he had been a Freemason since 1975 and became head of his ...
England Bans its Own Flag to Avoid Offending Muslims
St. George's Cross "racist" towards immigrants
Government officials said their city was ‘too multicultural’ to celebrate St George’s Day, England’s version of the 4th of July.
The council said that displaying the English flag may have been seen as “racist” towards immigrants.
Half of Western European men descended from one Bronze Age ‘king’
Half of Western European men are descended from one Bronze Age ‘king’ who sired a dynasty of elite nobles which spread throughout Europe, a new study has shown.
The monarch, who lived around 4,000 years ago, is likely to have been one of the earliest chieftains to take power in the continent.
He was part of a new order which emerged in ...
"Local Residents" Are Filmed Stealing Dozens of Bottles of Water at London Marathon Stop
Editor's Comment: "Local" residents? Why bother blurring their faces? We know who they are.
London marathon runners were robbed of dozens of bottled waters when thieves raided a refreshment area armed with trolleys during today's race.
Nearby residents - including parents with children - were captured on camera piling up crates of free water handed out by volunteers during the 26-mile event.
|More News » |