Naturalizer Women's Oxford Sz 8 Red Leather Naturalizer Oxford Style 26174 Active Sneaker Career Shoes a21e839 -

Naturalizer Women's Oxford Sz 8 Red Leather Naturalizer Oxford Style 26174 Active Sneaker Career Shoes a21e839

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
Width: Medium (B, M)
Brand: Naturalizer Pattern: Solid
US Shoe Size (Women's): 8 Country/Region of Manufacture: China
Color: Red Occasion: Casual
Fastening: Lace Up Style: Oxfords
Heel Height: Low (3/4 in. to 1 1/2 in.) Material: Leather
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.

KENNETH COLE REACTION DRIVER MOCCASINS LOAFERS SOFT BROWN LEATHER SZ 8 EUC , Womens CLARKS Bendables Flat Slip Ons Shoes Size 9.5 M Brown CamelWomens Liz & Co Black Patent Leather Horse Bit Scrunch Ballerina Flats SZ 6.5 MLifeStride Women's Sz 7 M Black Patent & Snake Skin Low Wedge Heels Loafer Flats , Primigi Sneakers Xena 39N L 8 Multi Silver , Women's Boc Born Slip-on Loafers Brown Leather Comfort Walking Shoes 8 M A0500 , Easy Street Forever Scalloped Mules, Tan, 7.5 USWomens CLARKS ARTISAN Tan Leather Tassel Clogs Mules Block Heels Shoes sz 7 M , Columbia Gray Canvas Shoes Flats Womens Size 6 Jute Slip On , Clarks Black Slip On Shoe Leather Womens Casual Shoes Sz 7.5MSperry Top Sider Womens Boat Shoes Size 7 Gold Shiny Sneakers Shoes , Women's Ariat Black Leather Slip On Clog Shoes Size 7.5Primigi Sneakers Xena 38N L 7 Multi SilverB35 Hellen Pointed Toe Slip On Loafer Flats, Black, 7 USEasySpirit Anit-Gravity ESGENIUS Women's Clog Moccasin Mules Suede Shoes Size 7NEmma Fabric Ballet Flats Size 9.5 StyleA0602 $145 Sample Blue White Antique , WALKING CRADLES women walking shoe clog brown leather rubber sole comfort Sz 7WW , Womens Cobbie Cuddlers Soft Leather Footwear Black Sz.8 w NWTLarry Stuart Collection Penny Loafers D. Brown BV Basketweave Sz7Clarks 75799 Privo Flats Mules Size 6.5 MMerrell PLAZA BANDEAU J46498 Women Expresso Leather Mary Jane Comfort Shoes Sz 6 , SAS Jewel Tripad Comfort Cinnamon Brown Leather Loafers Moccasin Women's 8.5 N , New Jennifer Lopez Encaje Hot Pink Women's US 8.5 Sheer Slip-on Shoe Flats , Blue Suede Shoes Womens size 8 flat loafers slip on canvas boat Gray (O) , Size 11 NIB Retro Vintage Modcloth Style Flats Silver Shimmer , GB35 Parisaa Flat Slip-On Comofort Shoes, Midnight, 5 USDaniBlack Women's Metallic Silver Leather Sandals Chains Size 7.5 Thong Gladiato , Nine West D’orsay Flats Gold Black Glitter Bow 7.5 , TALBOTS Women's Black White Striped Straps Flats Shoes Size 7M MINT ,

"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.

CARRIAGE COURT SHOES WOMENS SIZE 7 M ELDONCole Haan Womens Tan Butterscotch Leather Flat Mule Shoe - Size 9AAGALIA Ballerines Vintage cuir noir P.37 , Pleaser Ballet Flat W/ Bow Accent Adult Women Flats Blk Pat Shoes , Style & Co. Womens Vinniee Leather Closed Toe Ballet Flats Black Size 6.5 VIetWALKING CRADLES WOMENS SHOES BLACK SIZE 5-5.5 M EXCELLENT LOAFERS $105 , ORTHOFEET Orthotic CHATTANOOGA MARY JANE Gray Mesh Women's Size 10.5 M , Ladies Easy B Flat Shoes WinchcombeTrotters Sarina Metallic Leather Slingback Flats, Women's Size 11 W, Pewter NEW , Skechers 940 Street Womens Hi-Lite-No Dice Fashion Sneaker- Choose SZ/Color.Nike Free Running Training Flyknit Sneakers Wolf Gray/Pink Force Size 5Y EUCMerrell lithe glove Dark shadow barefoot shoes size 7.5 (z4)Louise Et Cie Womens Betha Loafers Round Toe Fashion Sneakers Shoes BHFO 2654Sanuk Donna Tribal Women's Slip On Flats Yoga Mat Comfort US10, UK8, Euro 41 , New Women's Sneakers Casual Sports Athletic Running Shoes Air Cushion ShoesNIKE Legend SS High LE Black Leather Quilted Boots Women's Sz 6.5 333891-001~GC , Muffins Platform Sport Fashion Sneakers Casual Wedge High Heel Women Shoes Sbox1FOREVER 21 Black High Top Fashion Sneakers With Studs Women's Size 7.5 EUCAsics Women's Running Shoes Blue/Mint Size 5.5 Eur 24 C619N PreownedWOMENS SAUCONY SAPPHIRE GRAY TRAINERS SIZE 8M (563) , Womens Nike Air Jordan Huarache Basketball shoes size 7.5 US 319408-011Women's No Name Jungle Bandana Blanc Queensland Athletic ShoesNEW PUMA FENTY BY RIHANNA CREEPER BLACK WRINKLED PATENT SNEAKERS WOMEN'S US 9Mizuno Wave Lightning 6 Indoor Volleyball Womens 9kv-08362 White Red ShoesPUMA Women's Carson 2 Metallic Wn Sneaker - Choose SZ/ColorNIB New Balance W520 W520FT2 Womens Gym Crossfit Running Athletic Shoe , Paul Sperry Womens Swell Emmy Faux Suede Athletic Shoes Sneakers BHFO 4651Saucony Womens 10 Grid Tornado 6 Running Shoes Navy Blue Turquoise S15224-1 NEW , WOMEN'S SKECHERS GO WALK BLEND 13777 SLIP ON SHOESConverse One Star Black/White Low-Top Leather Sneakers US Men's 6.5 Women's 8.5

"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

Naturalizer Women's Oxford Sz 8 Red Leather Naturalizer Oxford Style 26174 Active Sneaker Career Shoes a21e839 -

Naturalizer Women's Oxford Sz 8 Red Leather Naturalizer Oxford Style 26174 Active Sneaker Career Shoes a21e839
By signing up, you agree to our Privacy policy and Terms and Conditions.