Columbia PFG Womens Size 7 Shoes Shoes kelvinsi-26362 PFG Ballet Flats Gingham Gray Canvas Suede Omni 5bccf12 -

Columbia PFG Womens Size 7 Shoes Shoes kelvinsi-26362 PFG Ballet Flats Gingham Gray Canvas Suede Omni 5bccf12

Item specifics

Condition: New without box :
A brand-new, unused, and unworn item (including handmade items) that is not in original packaging or may be missing original packaging materials (such as the original box or bag). The original tags may not be attached. For example, new shoes (with absolutely no signs of wear) that are no longer in their original box fall into this category. See all condition definitions- opens in a new window or tab
Seller Notes: New without box
Heel Height: Flat (0 to 1/2 in.) Width: Medium (B, M)
Color: Gray Brand: Columbia
US Shoe Size (Women's): US 7/UK 5/EU 37.5 Pattern: Solid
Material: Suede/Canvas Style: Ballet Flats
Occasion: Casual Fastening: Slip On
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.

Easy Spirit Black Ballet Type Leather Ladies Shoes , Nine West Amber Women US 6.5M SKU: , Bass Womens Grayson-1 Leather Oxford Casual Ballet Flats Wht/Blk Houndstth 6 9 MB.O.C. Born Black Leather Clogs Mules Women's Shoes Size 8.5 M Z00603COLE HAAN Brown Leather Classic Slip-on Penny Loafer Flats Woman's 7B Brazil , Jambu Mary Jane Mai Tai 8M Oatmeal Slip On Leather Cut Out Cross Strap Shoes$99 NEW Jambu Women's Crimson Slip-On Moss, Charcoal Size US 5.5- 6.0 M , Sanuk Womens Pair O Dice Slip Ons Olive Gum Size 7 NewSkechers Bobs Plush Women's Feather Tan Slip On Flats - Size 7/8/8.5/9/10 NWB , SKECHERS WOMENS BOBS CHILL LUXE TRAVELER NAVY WOMEN'S SZ 11.0 M NEW DISPLAY 8458Naturalizer Clarissa Casual Shoes - Women's Size 7 M, BlackBorn Olive Green/Tan Herringbone Fabric/Leather Loafer - Women's Slip Ons 8MMerrell PARMA Olive Brown Leather Slip On Shoes Women's 7 , NEW SPERRY TOP SIDER FIREFISH STRIPE LIGHT GREY LEATHER & MESH BOAT SHOES , Women's SAS Petra Brown leather Oxfords Sz 9.5 WW , Sperry Top Sider Stripe Denim Canvas Slip On Laurel Reef Espadrille 8 39 Sale , Sperry Top Sider Boat Shoes Loafers - Women's 6.5 ANGELFISH Navy/Plaid SuedeDOUBLE H BOOTS Women's Brown Leather Slide Mule Clog Western Shoes Size 6 / 36.5 , AGL Bow Patent Leather Flats Sz 10.5 US 40.5 EU Nude $325Womens BABARA Leather Flat Shoes Size 7.5/ 24.5E (24.5 cm)Skechers Tone Ups Black Crisscross Strap Mary Jane Walking Flats Shoes ~Sz 8.5 , Mojaries Women Shoes Black Flip-Flops Leather Indian Ballerinas US 6-12 , SAS "Jewel" Bark Brown Leather Slip On Loafers - Tripad Comfort - Size 8M EUC! , PUNK14/B/PU Gothic Punk Pirate Skull Women's Ballet Halloween Costume Flat ShoesDANSKO Women’s Brown Leather Mary Jane Buckle Shoes Size 7.5-8 US/38 $135Dansko Womens Shoe Size 40/10US Black Patent Leather Slip On Loafers CF15 , Array Blue Leather Flats "Freedom" Size 9 1/2 EUC Soft LoaferIsaac Mizrahi Orange Multi Snake Print Sunny Ballet Flats 11 NEWJBU By Jambu “Tula” VEGAN/Textile Shoes Memory Foam Weather Ready Size 10 LN

"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.

Anne Klein Aricia Bow Toe Ballet Flats 573, Black, 9 US , Crocs Springi Pink Slingback For Women Sz 10M - NWOB $39.99 , Anne Klein Black Alligator Flats Shoes Iflex Size 7.5 Ladies Womens New NibLadies Rockport Adiprene Plum Suede Leather Shoes SK71917Jutti Women Shoes Punjabi Flip-flops Leather Indian Handmade Ballerinas US 12Johnston & Murphy Domani Size 7 M Dress Shoes Italian Made Loafer Moccasin Toe , Womens Naturalizer Mules/Clogs 9M Black Leather Slip On Loafers Casual SlippersMerrell Women's Tan Improv Moc Tumbleweed Hiking Walking Size 6.5 , Antonio Melani Size 7.5 Gold Leather Flats New Womens ShoesEasy Spirit Karne suede leather oxfords brown 8.5 Md NEWNew Women's Skechers Flex Appeal 2.0 Done Deal Casual Walking Shoes 12769 pc 18T , NIKE AIR Zoom Structure 20 Women’s Athletic Running Shoes Size 11 , NIKE womens synthetic lite weight in purple,lime,lavender 7M in excellent cond.REEBOK WOMEN'S WHITE FASHION SNEAKERS SZ 7.5 in VERY GOOD CONDITION , K-Swiss Women's Hoke CMF Sneaker - Choose SZ/Color(511882-111) WOMEN'S NIKE ROSHE ONE WHITE/WHITE , Puma Basket Heart Suede Jr Halogen Blue Lilac 3 4 5 6 SportsLocker 365009-06New Balance Women's 580 Classic Sneakers Shoes WRT580WE Suede Medium (B, M) , NIKE Dual Fusion Run Black/Fireberry Sneakers Sz 9.5 , Valentine's Day Special-Pekingese Dog Print Running Shoes For Women-Free ShippinAsics Womens Gel Lyte V Vanilla Cream White Sprinkles H7Z9L-0202 Msrp $120 KCNike Tanjun Gray White For Women's Youth Size New In Box 818384 003 , NEW! ASICS Women's GEL-Cumulus 19 Running Shoes Black/Pink #T7B8N 103A pzNIKE Womens Hyperize Black/White/Silver Shoes Size 8.5 , Nike Women's Air Force 1 07 Low Size 8 , PUMA Tsugi Jun Sneakers - Women's Size 11 - CreamWomen's Salomon X-Celerate 2 Sports Trail Running Trainers Shoes , Adidas CrazyTrain Elite Women's Training Shoes Sz.6.5 US Black NWOB , Skechers Women's Go Step Lite-GLITZ 14724 Black Goga Max Foam Brand New , Converse CT Shoreline Slip 537080F Navy Canvas Casual Women's Shoes Size 8 M ,

"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

Columbia PFG Womens Size 7 Shoes Shoes kelvinsi-26362 PFG Ballet Flats Gingham Gray Canvas Suede Omni 5bccf12 -

Columbia PFG Womens Size 7 Shoes Shoes kelvinsi-26362 PFG Ballet Flats Gingham Gray Canvas Suede Omni 5bccf12
By signing up, you agree to our Privacy policy and Terms and Conditions.