Skechers 26497 Women's Go Lite-Streak Step Lite-Streak kelvinsi-26497 Walking Shoe df7f88d -

Skechers 26497 Women's Go Lite-Streak Step Lite-Streak kelvinsi-26497 Walking Shoe df7f88d

Item specifics

New with box: A brand-new, unused, and unworn item (including handmade items) in the original packaging (such as ... Read moreabout the condition
Style: Does not apply
International Shipping: This item is not eligible for international shipping. Learn More Shipping Information: View shipping rates and policies
color: Black Item model number: 14738
Brand: __unknown__ Domestic Shipping: This item is not eligible for international shipping. Learn More
MPN: 14738
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.

Clarks - Womens Cheyn Marie Shoe, Size: 9 BM US, Color: GreyFeetmat Womens Running Shoes Fashion Sneakers Mesh Lightweight Breathable... , Pastry Glam Pie Glitter Dance Sneakers, Black, Size 7CLARKS Women's Everlay Leigh Ankle Bootie , Skechers Sport Women's Flex Appeal 2.0 SneakerOCHENTA Women's Canvas Wedge Heeled Platform Fashion Sneaker Pump Shoes , New Balance Women's 420 Running Lifestyle Fashion SneakerSkechers Women's Go Run Mojo-Verve Sneaker , Skechers Sport Women's Flex Appeal 2.0-Done Deal Fashion Sneaker , Ryka Ryka705043878875 Womens Black/Coral Rose/Atomic Orange Dynamic 5 B(M)New Balance Women's 490V5 Running ShoeHeelys 770286 Girl's White And Purple One Wheel Canvas Trainers NewNEW VANS X A TRIBE CALLED QUEST AUTHENTIC SHOESSkechers Sport Women's Flex Appeal 2.0 Newsmaker Sneaker , Skechers Flex Appeal 2.0 Change Up Black/WhiteRoxy Women's North Shore Sneaker White/White Patent 10 M USSkechers Metamorphic Womens Black Breathable Skech Knit Mesh Stretch Loafers New , NEW PUMA WOMENS SUEDE PLATFORM SNEAKERNEW MATT BERNSON SS18 WOMENS CARRERA , Skechers Women's D'Lites - Style Rethink White/Silver Sneaker 11 B M , Skechers Sport Women's Gratis Simply Serene Fashion Sneaker , Skechers BOBS From Women's Phresh Fashion Sneaker , Skechers Sport Women's Breathe Easy Symphony Fashion SneakerSkechers Women's Go Run Fast Invigorate Sneaker , Adidas F10 TRX FG Soccer Cleats - Black/Metallic Silver/Pink (Womens) , ALDO Women's Jacobe Sneaker, White, 10 B US , Etnies Women's Scout W's Skate ShoeSkechers Sport 22532 Womens Breathe Easy Jackpot Fashion Sneaker, Black, 7 M USKeds Women's Kickstart Fashion Sneaker - Choose SZ/Color ,

"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.

Gentle Souls by Kenneth Cole Womens Eugene Silver Leather Loafers Shoes Size 10Isaac Mizrahi Live Imfrankie Womens Black Suede Shoes size 6 M , Easy Spirit, Esulises gray Low Heels career/casual shoes MNEW LUCKY BRAND WOMEN MULTI COLOR POINTY TOE SANDALS FLATS SHOES ANKLE SIZE 8.5DESIGUAL LAUREL RED PINK ORANGE SUEDE LEATHER CIRCLE BALLET FLATS 8.5 9 39 M EU , RYKA SERENA LIFESTYLE FASHION SNEAKER WOMEN'S 5.5 MEDIUM (B,M)Earth Tangelo Floral Print Women's 10 Slip-on Casual Loafer Leather Shoes. , Skechers Flex Appeal Women's Running Shoes 12263 LGCL Memory Foam (Grey) [157H] , ATHLETECH Breathable Dark Blue Tennis Athletic Shoes, Navy Size 11, EUCBALLY BLACK AND WHITE LEATHER TASSEL DETAIL FLATS Sz 38.5M MADE IN ITALY , Nike Shox Elite Flight Women's Size US 8.5 White Red Basketball Shoes , Brooks Ghost 6 Womens Running Sneakers Shoes Pink Gray Black Size 11BHappy Feet Mens and Women's NFL Sneaker Pair Slippers Green Bay Packers SmallNIKE Tennis Classic Ultra Flyknit Shoes WOMENS Sz 11 Black And OrangeNew Foamtreads Canada Dinali Women Winter Shoes Slip Tribal Lined Leather Red 5 , Women's Adidas Okapi Womens - US7 Practical And Economical Athletic ShoesWomen's Latigo Rada Women's FLATS Flax Beautiful Design FlatsFabulicious Women's Lip 101-8 White Fur/ClearNew Balance Training Entrainement Womens Black Cross Training Sneakers Size 9.5Gola Women's Grace Metallic Sneaker , New Balance Women's Boracay V3 Running Shoe Metallic Silver/Thunder 5 B USNEW ECCO Soft 7 Women's High Top Sneaker - White LEATHER SZ 8. $170 RETAILVans AUTHENTIC LO PRO Velvet Black Women's Shoes 6 , Vans Iso 1.5 Mesh Ultracush Pewter Ballerina Women's Size: 7Women's Easy Spirit Walking Sneakers - Romy - Black/Dark Grey - New in Box!!Vision Street Wear Floral Jean Denim Athletic Shoes Womens Sneakers 7.5 Hip Hop , Merrell Continuum Gore-Tex Vibram Hiking Shoes Women's 8.5Zoot Solana 2 Running Shoes, Women's 10, NEWHoka One One Vanquish 2 Women's Grey/Poppy Red Running Shoes 5MVANS Authentic Lo Pro Gossamer Green/Blanc de Blanc Skate WOMEN'S 6 ,

"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

Skechers 26497 Women's Go Lite-Streak Step Lite-Streak kelvinsi-26497 Walking Shoe df7f88d -

Skechers 26497 Women's Go Lite-Streak Step Lite-Streak kelvinsi-26497 Walking Shoe df7f88d
By signing up, you agree to our Privacy policy and Terms and Conditions.