Clarks Women's Artisans Women's 7 Brown Shoes Slip Leather Croco pattern Vamp Slip on Loafers Shoes 0df79d6 -

Clarks Women's Artisans Women's 7 Brown Shoes Slip Leather Croco pattern Vamp Slip on Loafers Shoes 0df79d6

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: Very Good NewCondition
Style: Loafers Material: Leather
Brand: Clarks Color: Brown
Width: Medium (B, M) Pattern: croco
US Shoe Size (Women's): 7 Fastening: Slip On
Heel Height: Med (1 3/4 in. to 2 3/4 in.)
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.

Betsey Johnson Black White Flip Sequin Satin Ribbon Ballet Flats Shoes Size 8Women's Sanita Clogs Slides Mules Professional Suede Tan Buckle Euro 38Vintage Women's Colorado Deck Shoes, Size 5M , Elaine Turner Women Shoes Size 6.5 Hot Pink Bamboo Accent Espadrille FlatsEnzo Angiolini Women's Leather Faux Alligator Loafers Flats Womens Size 7.5MBar III Dabney Women Shoes Gunmetal Mirror Metallic Shine Oxfords Sz 8 M , Amalfi Nordstrom Womens Loafer Oxford Black Size 9B Block Heel Leather Italy , BORELLI Tonya Women Slip On Moc-Toe Quilted Loafers Size 8.5 M Brown LeatherSPERRY TOPSIDER BAHAMA ZEBRA AQUA BLUE SEQUINS BOAT SHOE 9688912 Womens Size 10MWomens Aerosoles Heelrest sz 6M, Final Exam Tan , BORN flats. 10M. Leather. Silver and black. , Clarks Originals Wallabees Women's Suede Casual Ankle Shoes Chukka Size 6 M , Vintage PIERO AMORE Womens 8.5 B Brown Metallic Pat. Leather Low Heel Pumps Y381 , Natural Soul Naturalizer Womens Size 6.5 M Fanner Black Suede Flats Slip On , Valleverde Italy Ladies Leather Snake Loafers "Sara F" , Eileen Fisher Patent Leather Flats Slip On Beige Cream Nude Womens Size 9.5 , Women's Nicole Heart Black Patent Leather Slip On Shoes Size 8 M , Dasnko clogs red floral weave 41 fabric tapestry nurse 10.5 11 professionalLucky Brand Aaron womens Driving Mocs Leather Faux Fur lined shoes size 8 B , Donald J. Pliner Ubbia Women's Slip On Loafers Wedge Faux Croc Plum Size 8MEUC BORN Concepts Womens Heeled Slip On Mule Clogs Size 7M Color Black , Easy Spirit Womens Size 6 Brown Suede Leather Slip on Loafers FlatsVINCE CAMUTO Hai Women Ballet Flats 10M Black LeatherAEROSOLES women's loafer shoe casual 6.5M black suede NICE , Andeawy Ruched Flats Size 8.5 ShoesMerrell Womens Suede Fabric Brown Moc Clogs Mules Ortholite Q Form 7.5 , BORN Espadrille Flat Canvas Leather Canvas Green Striped women sz 9 Euro 40 , COMFORTVIEW BROWN PATENT CRICODILE EMBOSSEDLOAFERS SIZE 10 WBJORNDAL Women US 8.5M Black Leather Loafer Slip On Career Comfort ,

"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 Rock Republic AUDRINE BLACK Slip On Dress Shoes SZ 6Size 11 low heel Slip On Black patent leather - Call It Spring , Harold's Suede Mules 7.5 1" Heel Black Excellent Condition!JSPORT Encore Women's Multi-Color Water Ready Sport Shoes Size 9 M NEWDansko Womens Eartha Suede Slip On Clog - Brown | US 9.5-10 , Soft Style Womens Heartbreaker Closed Toe Ballet, Natural Eclipse-275, Size 5.5 , NEW Women's Size 6 Dark Earth Brown Merrell Kamori MOC Slip On Loafer Shoes $80 , MELISSA Jelly Ballet Flat Blue Pink Bow 7 Scented PVC * RARE! , 629 NEW Ron White Winley Dove Suede Perforated Derby Women's Sz 37.5 M , SAS slip on loafers pearl size 9 slim tripad comfort sole padded insoles , New Women Breckelles Tammy-62 Faux Suede Pointy Toe Ballet FlatVANS VIOLET CANVAS LOW SKATEBOARD SHOES WOMEN SIZE 7 MEN 5.5Men Adidas X 15.4 Indoor Soccer Cleat Size 6 Sneakers 312 , U.S. Polo Assn. Women's CECE Fashion Sneaker MULTI-COLOR SZ 9.0 M PRE OWNED 5564MERRELL Continuum Women's Trail Hiking Shoes Taupe VIBRAM J86612 Size 7.5 $120New Balance 860 v6 Ladies 9 2A (Narrow) (40.5 Europe) Running Shoes White Purple , New Never Worn Hy-Test Women's Steel Toe Tennis Shoes Work Safety 7.5 W Wht/PinkWomen's Womens Pure Bounce New Products Athletic ShoesVans SK8 HI Reissue CA Vansguard White Women's Shoes 6.5VANS New SK8-Hi Slim Metallic Dots Dark Gray Womens 6 Mens 4.5 - Display Model , PUMA ST Trainer Evo Purple Cactus Flower Women's Sneakers 360963-07Puma x Fenty by Rihanna The Trainer High - Beige - WomensLowa Renegade II Womens Goretex Hiking Shoes US 8.5 Brown Leather Euc , Skechers Skyline Navy Womens Sporty Shoes Size 9M , NEW Vionic Agile Fyn Athletic Shoes WOMENS size 6 Cobalt Blue 335FYN $115.New Balance Zante V3 Running Shoes - Women's Size 9.5B - Reflection/Rose Gold , Steve Madden Blush Pink Multi Natural Comfort Whales Sporty Sneakers 9 NEWNIKE Women's Classic Cortez Nylon Snickers Training Shoes New Sz 6; 11 , Brooks Radius 05 WHT/BLU/GREY/GOLD 42161 171 Women's US Sz 5Womens Fred Perry Howells Canvas Patent

"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

Clarks Women's Artisans Women's 7 Brown Shoes Slip Leather Croco pattern Vamp Slip on Loafers Shoes 0df79d6 -

Clarks Women's Artisans Women's 7 Brown Shoes Slip Leather Croco pattern Vamp Slip on Loafers Shoes 0df79d6
By signing up, you agree to our Privacy policy and Terms and Conditions.