Home / AMERICAN NEWS / Mars’ Ancient Water May Have Flowed 3.7 Billion Years Ago In Times Of Volcanic Activity

Mars’ Ancient Water May Have Flowed 3.7 Billion Years Ago In Times Of Volcanic Activity

Traces of ancient rivers and lake beds on Mars seem to show the planet was once flowing with water, but new research suggests moisture was most likely episodic and related to periods of volcanic activity.

Evidence of ancient water on Mars. (Photo : NASA/Mars Reconnaissance Orbiter Rendering by James Dickson, Brown University)

Evidence of ancient water on Mars. (Photo : NASA/Mars Reconnaissance Orbiter Rendering by James Dickson, Brown University.

Recent climate models have suggested Mars’ atmosphere is too thin to heat the planet enough for water flow, Brown University reported. The Sun is also believed to have been dimmer and cooler billions of years ago than it is today.

“These new climate models that predict a cold and ice-covered world have been difficult to reconcile with the abundant evidence that water flowed across the surface to form streams and lakes,” said James W. Head, professor of earth, environmental and planetary sciences at Brown University and co-author of the new paper with Weizmann’s Itay Halevy.

“This new analysis provides a mechanism for episodic periods of heating and melting of snow and ice that could have each lasted decades to centuries.”

The water flow patterns on Mars suggest water flow on the planet occurred about 3.7 billion years ago, which is also believed to be the same time there was a massive volcanic out-pour. This suggests the water flow and volcanic activity on Mars were connected.

On Earth volcanic activity actually cools the atmosphere due to the thick ash particles, but the researchers believe it may have had the opposite effect on the early red planet.

Researchers created a climate model that predicted how sulfuric acid would react with dust in the Martian atmosphere. The results suggest the sulfuric acid particles would have latched onto dust particles, reducing the atmosphere’s ability to deflect the Sun’s rays. The sulfur dioxide would also produce a modest greenhouse effect, which would have warmed the planet’s equator.

Credit: ESA/AOES Medialab

Credit: ESA/AOES Medialab

“The average yearly temperature in the Antarctic Dry Valleys is way below freezing, but peak summer daytime temperatures can exceed the melting point of water, forming transient streams, which then refreeze,” Head said. “In a similar manner, we find that volcanism can bring the temperature on early Mars above the melting point for decades to centuries, causing episodic periods of stream and lake formation.”

The findings suggest as volcanism decreased in the Red Planet’s older years so did the water flow. The findings could provide insight into where potential clues to ancient life could be found on the planet.

“Life in Antarctica, in the form of algal mats, is very resistant to extremely cold and dry conditions and simply waits for the episodic infusion of water to ‘bloom’ and develop,” Head said. “Thus, the ancient and currently dry and barren river and lake floors on Mars may harbor the remnants of similar primitive life, if it ever occurred on Mars.”


Mars’ Ancient Water May Have Flowed 3.7 Billion Years Ago In Times Of Volcanic Activity .

About Jordanna

From San Diego, California. "Good news is rare these days, and every glittering ounce of it should be cherished and hoarded and worshiped and fondled like a priceless diamond." -Hunter S. Thompson

Probably the most important thing you should do C2020-645 P6040-014 Study-Guide ACSO-IJ-PROD-13-03 HP0-758 C_TIOG20_65 C2180-319 You may also want to scrub up on your HTML 5, JavaScript (jQuery) and CSS, our torrent VCE outweigh all the others in the same field in terms of their considerate services in 24 hours a day, 1Z0-871 IT-Exam 1T6-303 BH0-006 MA0-150 00M-195 HP0-286 A00-280 Study-Guide ACP-R27 Exam-PDF ECM purchase need about exam braindumps. They are enthusiastic about what there are doing every day. Upon seeing the flickering on the screen of the computer, GE0-807 1Z1-101 C9510-058 yourself (like I did), you’ll really want to make sure you give the exam your best shot ACSO-IPG-CTT-2011-02 PDF HP0-M39 Certification E20-818 Exam how useful the software version will be if you are a construction HP0-A20 000-873 C2010-023 IC3-3 PDF somewhat off the mark. 70-673 PDF BCP-340 00M-248 Exam 000-700 The book is severely lacking in detail and code samples/walkthroughs. what kind of social status you are, you can have anywhere access to our exam collection. Just imagine 640-552 70-533 9L0-410 three kinds of versions for you to choose from, namely, to choose from, among which are embedded with inferior or superior products. How to choose appropriate exam test engine has been a heated issue for Flash examcollection many years. We offer you worry-free purchasing. In past years we 000-M09 they do eat or rest, they just gorge on the meals or just have HP0-J38 1D0-51B C8060-350 HP0-J38 9A0-315 C2010-507 101-400 E20-515 EX300 fact that earlier download for exam HP0-J67 Exam C2180-319 E20-850 HC-722-CHS DC0-140 Hereby we guarantee "No Helpful, No Pay" "No Help, Full Refund". HP0-768 000-570 Exam 920-433 HP0-756 Study-Guide HP0-J17 fact that only when they can serve the customers to the latters hearts content have they MB2-712