Converse Converse Fashion Sneakers White Textile Fashion Women8Medium (B, White M) 3e15025 -

Converse Converse Fashion Sneakers White Textile Fashion Women8Medium (B, White M) 3e15025

Item specifics

Pre-owned: An item that has been used or worn previously. See the seller’s listing for full details and ... Read moreabout the condition
Brand: Converse
US Shoe Size (Women's): 8 Width: Medium (B, M)
Style: Fashion Sneakers Material: Textile
Country of Manufacture: China Heel Height: Flat (0 to 1/2 in.)
Fastening: Lace Up Color: White
UPC: Does not apply
Mars likely to have enough oxygen to support life: Study

PARIS - Salty water just below the surface of Mars could hold enough oxygen to support the kind of microbial life that emerged and flourished on Earth billions of years ago, researchers reported Monday (Oct 22).

In some locations, the amount of oxygen available could even keep alive a primitive, multicellular animal such as a sponge, they reported in the journal Nature Geosciences.

"We discovered that brines" - water with high concentrations of salt - "on Mars can contain enough oxygen for microbes to breathe," said lead author Vlada Stamenkovic, a theoretical physicist at the Jet Propulsion Laboratory in California.

Converse Running Shoes Gray Textile Women9.5Medium (B, M)Mossimo Womens White Canvas Casual Tennis Shoes Low Top Sneaker Size 10Converse Chuck Taylor All Star HiTop Black Canvas Sneaker Shoes Wo 7 Men 6VANS Fashion Sneakers Silver Textile Women9Medium (B, M) , Womens New Balance Running 540 gray pink Shoes size 9M ABZ RBWomen's Fashion Running Sneakers Casual Athletic Breathable Walk Sports Shoes , PUMA Fashion Sneakers Orange Textile Women6.5Medium (B, M) , WOMEN ASICS GEL DUOMAX 1140 Running Cross Training T964N Shoes SIZE US 6White Skechers Work Slip On Sneakers Slip Resistant Sole Leather 8.5 Shoes , Eddie Bauer Fashion Sneakers Beige Textile Women6Medium (B, M)Womens Nike Air Morgan Mid Basketball Shoes Size: 9 Color: Multi-Color , Kangaroos Lady Joggers Shoes Size 10 Black. PairSAS Walking Shoes Navy Blue Leather Women9.5Medium (B, M) , Pearl Izumi Women's W EM Road N 0 V2 Running Shoe, Silver/Clementine, 12 B USTEVA Women's Refugio Water Shoes Sky and Navy Blue Size 9.5 US $68 , Women's Size 8.5 M NEW BALANCE 443 White Multi Color Leather Athletic SneakersPACIFIC TRAIL Grey Suede & Mesh Athletic Sneakers Womens Size 7 Mccc NEW BALANCE 425 GRAY ATHLETIC WOMENS 8.5 MWomens New Balance WXAGLBW2 Vazee Running Shoes Size: 9.5 Color: Black White , Under Armour Running Shoes Gray Synthetic Women8.5Medium (B, M) , FIT KNIT SNEAKER WOMEN RELAX-1-16 FOREVER FOOTWEAR GREYU.S. Polo Assn. Women's CECE Fashion Sneaker MULTI-COLOR SZ 9.0 M PRE OWNED 5564 , Keds Fashion Sneakers Blue Textile Women9.5Medium (B, M) , K-Swiss Women's Classic VN Sneaker, Black Leather, Size 9.5Reebok Classic High Top Chi-Kaze Shoes Women Size 6 , Reebok Running Shoes Silver Synthetic Women9Medium (B, M) , ASICS GT-2000 Running Shoes Black Synthetic Women8.5Medium (B, M) , Ladies KEDS Dark Pink Canvas Sneakers Casual Shoes Size 9.5 VGCVans Authentic Red Skate Shoes Women's 6.5

"This fully revolutionises our understanding of the potential for life on Mars, today and in the past," he told AFP.

Up to now, it had been assumed that the trace amounts of oxygen on Mars were insufficient to sustain even microbial life.

"We never thought that oxygen could play a role for life on Mars due to its rarity in the atmosphere, about 0.14 per cent," Stamenkovic said.

By comparison, the life-giving gas makes up 21 per cent of the air we breathe.

On Earth, aerobic - that is, oxygen breathing - life forms evolved together with photosynthesis, which converts CO2 into O2. The gas played a critical role in the emergence of complex life, notable after the so-called Great Oxygenation Event some 2.35 billion years ago.

But our planet also harbours microbes - at the bottom of the ocean, in boiling hot springs - that subsist in environments deprived of oxygen.

"That's why - whenever we thought of life on Mars - we studied the potential for anaerobic life," Stamenkovic.


The new study began with the discovery by Nasa's Curiosity Mars rover of manganese oxides, which are chemical compounds that can only be produced with a lot of oxygen.

Curiosity, along with Mars orbiters, also established the presence of brine deposits, with notable variations in the elements they contained.

A high salt content allows for water to remain liquid - a necessary condition for oxygen to be dissolved - at much lower temperatures, making brines a happy place for microbes.

Depending on the region, season and time of day, temperatures on the Red Planet can vary between minus 195 and 20 deg C.

The researchers devised a first model to describe how oxygen dissolves in salty water at temperatures below freezing.

A second model estimated climate changes on Mars over the last 20 million years, and over the next 10 million years.

Taken together, the calculations showed which regions on the Red Planet are most likely to produce brine-based oxygen, data that could help determine the placement of future probes.

"Oxygen concentrations (on Mars) are orders of magnitude" - several hundred times - "greater than needed by aerobic, or oxygen-breathing - microbes," the study concluded.

Ladies Flat Satin Ballerina with Bow Trim and Floral Print F80292 , Women's Cole Haan Tassel Slip On Mocs Size 8 (B,M) Casual Solid Black LeatherNAOT Women's Clogs Green Leather Black Wedge Slip-on Mules Split Toe Shoes 41 10Easy Street Women's Giddy Ii Flat, Tan, 7.5 M US , LOUIE By RICHTER White & Brown Leather "Derby" Oxford Shoes, 41/US 9.5 Italy-B1Kravings by Klogs Womens ASTORIA Shoes Display Model SUNTAN 8 M , New Sperry Top-sider Firefish Snake Women's Deck Boat Shoes Linen 9 , Anne Klein AK Sport Women's Oksie Fabric Ballet Flat , Kenneth Cole Wilhemina Black Womens Shoes Size 5.5 M Flats MSRP $120 , New Beira Rio Tecido Womens Cushioned Active Casual Shoes Made In Brazil , Vans x Hello Kitty Pink HK Print Slip-on Sneakers Size W9.5 , Nike Flex Trainer 5 Size 7 Running Training Shoes Womens Grey Volt 724858 004 , Womens NIKE Lunarlon Flyknit 9.5 EUCTrotters Women's Arnello Ballet Flat, Dark Brown/Black, 11 N US , New Square Toe Womens Metal Decor Pumps Leather Loafers Oxfords Shoes Comfort SZMarc Fisher Womens Comrad Leather Closed Toe Loafers, Brown, Size 7.0 , Womens Saucony Liberate Running, Cross Training shoes size 7NIKE Shell Top Mule Sneaker Women's 7.5 Low Top Slip-On 315848-381 Brown/Orange , WOMENS NIKE LUNARGLIDE 7 GREY & PINK RUNNING SHOES SIZE US 12Womens Sneakers Size 9 Triple S FashionConverse Trainers Breakpoint Ox 155795c Cream , WMNS NIKE AF1 ULTRA FORCE MID PRT (U.S) SZ: WMNS 5 (807384 600)Skechers 23235 Womens Breathe-Easy-Flawless Look Sneaker- Choose SZ/Color. , Nike Air Pegasus 30 Womens Running Shoes 599392-404 Size 8.5 , Skechers You Define - Perfection Gray Womens Sporty Walking Shoes Size 6M , Puma Women's Volita Training Shoe, Gray/White/Green/Lime, Size 9.5 M USNike Superflyte Women Shoes Size 8 New! , New Balance 240 Womens 10 M Blue Silver Hibiscus Track Field Floral Running ShoeNew Balance WZANTOG3 Athletic Shoes - Women's Size 7.5 B, Slate , Womens Size 6.5,7,8.5,10 NIKE CITY TRAINER 909013 COOL GRAY WHITE VIOLET

"Our results do not imply that there is life on Mars," Stamenkovic cautioned. "But they show that the Martian habitability is affected by the potential of dissolved oxygen."

More aboutSpace and cosmos
Purchase this article for republication.
Your daily good stuff - AsiaOne stories delivered straight to your inbox

Converse Converse Fashion Sneakers White Textile Fashion Women8Medium (B, White M) 3e15025 -

Converse Converse Fashion Sneakers White Textile Fashion Women8Medium (B, White M) 3e15025
By signing up, you agree to our Privacy policy and Terms and Conditions.