Nike Free 5.0 19528 Womens Black 6 M Running Shoes Red Red Black White Sneakers 580591 600 Sport 063afb2 -

Nike Free 5.0 19528 Womens Black 6 M Running Shoes Red Red Black White Sneakers 580591 600 Sport 063afb2

Item specifics

Condition: Pre-owned :
An item that has been used or worn previously. See the seller’s listing for full details and description of any imperfections.See all condition definitions- opens in a new window or tab
Seller Notes: Soles - Have Heavy Wear... Foot beds - Have Heavy Wear... Uppers - Have Marks, Scratches and Heavy Wear Areas... Please see all photos prior to purchasing
Brand: Nike Material: Synthetic
Style: Running, Cross Training Pattern: mULTI-COLORED
Width: Medium (B, M) US Shoe Size (Women's): 6
Color: Red, White and Black Product Line: Free
Sub Style: Running Activity: Cross-Training, Running
Heel Height: Flat (0 to 1/2 in.) Features: Lace-Up
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.

VINTAGE MERRELL SPECTRUM Air Cushion Hiking Boots Shoes Women's size 10 , The North Face Women's Ultra Fastpack II GTX Shoes Vibram Size 7.5 , NEW CHUCK TAYLOR CONVERSE ALL STAR WOMEN'S SHOE BLACK 549650F SELECT SZ 8 , Vans Off the Wall Surf Shoes Palisades Ombre Purple Blue Womens 10.5 FlatsWomen's J.Crew New Balance Size 8.5 Gray Metallic ShoesWomen's Nike Free 4.0 Running Shoes 718412-100 White Black US Sz 6Keds Women's Champion Lurex Fashion Sneaker , Saucony Womens Echelon 6 Everun Running Shoes Sz 7 H377BEAUTIFEEL HOPE 1127 MARY JANE WOMEN SHOE SIZE (40) 9 9.5 BRONZE LEATHER FREE SH , Scarpa Proton vibram Unisex Trail-Running Shoes 7men's 8 Women'sAetrex X826 Lenex Walking Womens Leather Shoes Sz 8.5W , New Balance Womens - Green Running Shoes Size 10.5 (366286)Propet Women's Mary Jane Walker , NIKE AIR ZOOM PEGASUS 32 Running Shoe Women 8.5 M 749344 508 Sneaker Gray OrangeSkechers Women's Burst-Fresh Thinking Black/White 12790/BKW With Memory FoamNike Free Run 5.0 Size 7Nike Air Force Light Blue/ White 1 315115-414 , NIKE 511322-601 Neon Orange Running Shoes Womens 6 M Sneaker White Trainingadidas Women's W Adipower S Boost II Spikeless Golf Shoe, Size 5.5New Balance Vibram 889 Multisport Women's Sneakers US Size 9WOMENS NIKE AIR MAX FURY SZ 9.5 PURE PLATINUM SAIL AA5740 007NEW WOMEN’S COOGI LAYLA SNEAKERS CWF013 BLACK , Nike Womens Flex Trainer 5 Black Running Shoes Size 5.5 (326434) , Merrell Women’s Sandals Continuum V sole Qform air cushion HikingTrail Sz-6.5 MNEW BALANCE WOMEN’S 501 CLASSIC WL501BPR (B) BLACK/PINK (msrp: $80) , Adidas Womens - White Soccer Cleats Size 6.5 (423034)Women's Nike Air Zoom 20 Running Shoes 050507 QD Size 9 Blue , Isaac Mizrahi Live! SOHO Leather Perforated Sneakers GOLD 10M , Asics T59AQ Gel Scram 2 Womens 7.5 M Running Shoes Sneakers Black Pink Gray Walk

"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.

New women's shoes ballet flats mesh finish casual summer brown , Sperry Top Sider Wm Sz 10 Dark Brown Leather And Fabric TrimRocket Dog Spotlight Lima Pink Black Womens Flip Flops , Clarks Brown Leather Loafers Womens Sz 7.5 MKEEN 1011401 Presidio Women's Casual Shoe SZ 7 , BORN Leather Comfort Shoe Ladies 9.5 USDANSKO Vegan Volley Khaki White Floral Canvass Slip On Clogs SZ 7.5 8 US , ROCKPORT Women's Ladies Brown Leather Loafers Size 9 slip-on shoes , JENNY by ARA Womens PERLA Black Microsuede/Patent Ballet Flats 8.5 G , EUC Life stride shoes sz 9Traditional Wedding Women Shoes Leather Oxfords Indian Handmade Mojari US 6-9Minnetonka 107T Womens Kilty Softsole Moccasin Loafers Storm Size 6.5 , Women's Skechers Shoes - EZ Flex 3.0-Big Money - Charcoal - New!Yellow Box Flats - Slip-on Leather Brown Shoes Size 8 , crocs Womens Walu II Canvas Loafer- Pick SZ/Color.Ryn Women XRun White Athletic Shoe US Size 9 , Womens Girls Mens Black Butler Cosplay Flat Unisex Leisure Sneaker Canvas ShoesVANELi Women's Ardeen Black Ferns Patent Minilizard Elastic Slip-on Loafer FlatSaucony Womens Triumph Iso3 Natural Running Shoes Size 10 (316959) , Women's NIKE FREE FOCUS FLYKNIT 2 Training Running Shoes Sneakers - 880630 100 , CONVERSE Boots WOMENS SIZE- 5 ALL STAR Cream NEW$75Nike air max 1 (GS) running shoes size 5.5 Youth new , Fila J903Q Purple Pink Womens Running Shoes Sneakers 5-J903Q-991Skechers 12840 Sport Womens Ultra Flex Capsule Sneaker- Choose SZ/Color. , NEW BALANCE Running Shoes W860WB4 Blue / Grey Nylon Women's Sz 5.5 , New Balance Womens W560lg6 Grey/Silver/SeaGlass Running Shoes Size 5.5 (C,D,W)Nike Benassi JDI Print Slide Sandals White/Coral/Chalk Blue Nebula 618919 109 , Inov-8 f-lite 240 Womens Running Shoes U.S. 6.5 , New Balance Womens 8.5 Medium WW1765WB Athletic Running Shoes White Blue Sneaker , NIKE WMNS TOKI SLIP PRINT Rattan/Sail-Sunset Glow -724769 218-

"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

Nike Free 5.0 19528 Womens Black 6 M Running Shoes Red Red Black White Sneakers 580591 600 Sport 063afb2 -

Nike Free 5.0 19528 Womens Black 6 M Running Shoes Red Red Black White Sneakers 580591 600 Sport 063afb2
By signing up, you agree to our Privacy policy and Terms and Conditions.