Skechers Performance Flat Go Walk On Lite Slip On Womens kelvinsi-26446 Flats Flat Heel 031c3b5 - eslomeli.com

Skechers Performance Flat Go Walk On Lite Slip On Womens kelvinsi-26446 Flats Flat Heel 031c3b5




Mars likely to have enough oxygen to support life: Study
PHOTO: AFP

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.

Women Retro Punk Open Toe Hollow Leather Flat Heels Sandals Slip On Roman ShoesLANVIN Gray Suede and Leather Ballet Flats Sz 6.5 or 7 , Seychelles Survival Women’s 7.5 Metallic/Gold Slip On Casual Shoes X14-1254NWOB - TARYN ROSE 'Alick' Sz 7 Black Leather Flat Loafer w/ Elastic LatticeworkTrotters Liz Loafer - Women's Size 8.5M - BrownCole Haan Alice Snake Print Skimmer Shoes, Women's - Size 8.5 B, Brown/Cream , Eric Michael Candace Womens Suede Espadrilles Slip On Elastic Ankle Shoes , NINE WEST Womens 'Saxxen' Black Leather Pointy Toe Flats Sz 13 M - 231753 , DEMONIA Ankle Strap Flats Studded Straps Pentagram Spikes Goth STAR-23 BlackDansko XP Black Leather Professional Nursing Clog Shoes Women's Size 42/11.5-12 , SAS Black Soft Leather Tripad Comfort driving slip on Loafers shoes-8.5 SWomens Report NIB Elisabeth Gold Flats 6 M , WOMEN'S STUART WEITZMAN BLACK PATENT LEATHER BALLET FLATS SZ 10 1/2 DANCERCIZE , Pin Up Couture Women's Monroe 05 Slide , French Sole Volume Flats - Women's Size 6, BlackTalbots Edison D'ORSAY Bow Blue Women's Size 9.5 , ** Free People Bakersfield Slingback Mules, Women's - Size (US 6), BlackSummit by White Mountain Kamora Flats - Women's Size 5-6 - NudeHOUSE OF HARLOW 1960 Marion Beaded Moccasins Shoes in Rose Gold Size 6 Brand New , Hotter Women's Sugar Slip-on Loafer Shoes Tan HD3 Size 8M $115 , Salvatore Ferragamo classic logo black leather ballet flats size 7.5 B , Born Halle Womens 8 Metallic Bronze Leather Almond Toe Comfort Ballet Flats NWOB , Munro Extra Light XL Womens 9M Black Leather Perforated Slip On Flats LoafersChinese Laundry Womens Nightlight High Heel Pumps Shoes , Corso Como Gabrielle Flats - Women's Size 6 M, BlackNaturalizer Women's Bengol Flats Chrome Oxfords Size 10 M , Women's Klogs Austin Black Suede Tapestry Patent Leather 6M NWOBDemonia Red 2" Platform Creepers Shoes with Heart & Studs 6 7 8 9 10 11Alegria Metallic Floral Slide Open Back Mary Jane Clog Shoe Womens 40 / 9.5 - 10

"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.

LIFE ON MARS?

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.

Women's GH Bass & Co Addison Size 7.5M Brown Leather Mary Jane Flats Walking I3BORN Women's Black Pebbled Leather Mule Clog Slip On Shoes Size 7DANIEL Freestone Silver Metallic Leather Flatform Trainers - //US 10.5 , Klogs Womens Leather Shoes Napoli Blue Spruce 9.5 MMerrell Women’s 8.5 Silver Mixed Textile Front Zip Comfort Sneakers , Vintage Sas Flat What Shoe Size 7.5DC Shoes Women's Pro Spec 3.0 Cup Skate Shoe, Black Suede, 6.5 M US , Rocket Dog Women's Magic Canvas Fashion Sneaker, White, Size 8.0 ZDP7 , Women's Asics Gel Kayano 22 running shoes sneakers size 11 AA , CONVERSE All Star Low -Rise Sneaker Black Double Shell /Eur 39 023 , Men's Shoes Slippers Glerups Boot Slipper Denim 37.0 We Have Won Praise From Customers Slippers , Skechers D Lite Me Time & Now & Then Memory Foam Running Fit Women TrainersMBT sz 37 7M Chupa coffee GTX Gore-Tex sneakers womens ladies tennis shoesNIKE WOMENS 11.5 AIR ZOOM PEGASUS 34 RUNNING TRAINING SHOES BLACK 880560 001 , Skechers Performance Women's Go Step Lite Strived - Choose SZ/ColorKarina Diem-Cat Running Shoe For Women-Free Shipping , Authentic Joma C.Knitro Lady 601 Black-Pink , Puma Vikky Mesh FM - Black - Womens , DC - BRISTOL LE Womens Shoes *NEW Size 9-11 LEOPARD BLACK Animal Print FREE SHIP , NEW NIKE WOMEN'S AIR FORCE 1 HI PRM ATHLETIC SHOE DESERT/SLIVER 654440 002 , Saucony Women's Kineta Relay Grey/Heather/Coral Athletic Shoe , NEW Womens Sz 6.5 REEBOK Foam Fuel Techno J87322 Silver Purple Sneakers ShoesWomen's Skechers Sport Synergy Scene Stealer Shoe Black Size 9 #TJ962-1011 , Skechers Navy Blue Multi-Knit Slip-On Bungee Sneakers - Visions 8 38 NewNike Air Max Thea Mid Black/Black-Metallic Pewter 859550-002 Women's SZ 10Brooks Cascadia 11 Gore-Tex Women's Grey/Pink Trail Running Shoe 6MNike Lunar Lux TR Training Shoes 749183-600 Pink Fuschia White Womens SIZE 8Women's running Nike shoes lunartrainer size 10Hoka One sneakers7 womans infinite Running Shoes Sneakers , Womens Asics Gel Kayano 21 Running Shoe Charcoal Green Purple Silver Gray T4H7N

"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.
BRANDED CONTENT
SPONSORED CONTENT
Your daily good stuff - AsiaOne stories delivered straight to your inbox

Skechers Performance Flat Go Walk On Lite Slip On Womens kelvinsi-26446 Flats Flat Heel 031c3b5 - eslomeli.com

Skechers Performance Flat Go Walk On Lite Slip On Womens kelvinsi-26446 Flats Flat Heel 031c3b5
By signing up, you agree to our Privacy policy and Terms and Conditions.
115682
5083014
5116837
5445407
6089528
7272688
14202482
15304528
17533958