Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

We are all now connected by the Internet, like neurons in a giant brain.

 

Stephen Hawking

 

Early Mars atmosphere oxygen rich before Earth

RATE THIS! +14
Posted in Science on 20th Jun, 2013 07:06 PM by AlexMuller

Mars' atmosphere could have been rich in oxygen four billion years ago - well before Earth's air became augmented with the gas. That is the suggestion put forward by the author of a study in Nature journal, which outlines an explanation for differences between Mars meteorites and rocks examined by a robot rover.

 

Dr Bernard Wood said the idea fits with the picture of a planet that was once warm, wet and habitable. But other scientists were sceptical.

 

While the rise of atmospheric oxygen on Earth was probably mediated by life, Martian oxygen could have been produced through the chemical "splitting" of water.

 

Prof Wood and his colleagues from Oxford University looked at the chemical composition of Martian meteorites found on Earth and data from Nasa's Spirit rover, which examined surface rocks at Gusev Crater on Mars.

 

Both are igneous rocks (of volcanic origin), but they show major geochemical differences. For example, the Gusev Crater rocks are five times richer in nickel than the meteorites.

 

This had posed something of a puzzle, casting doubt on whether the meteorites were typical volcanic products of the Red Planet.



Read original article » Back to category

Comments



 

Recent headlines

  • Posted in Medicine on 2017-08-17 17:34:13
    Liquid Biopsy Passes Test for Early Cancer Predicts 59%.....read more
    Posted in Science on 2017-08-17 17:22:09
    Industrial-scale high-resolution brain mapping for.....read more
    Posted in Software on 2017-08-17 17:17:26
    Andrew Ng is raising a $150M Artificial Intelligence.....read more
    Posted in Online on 2017-08-17 17:12:24
    Google brings Questions and Answers to Google Maps..read more
    Posted in Science on 2017-08-16 23:13:20
    There’s a lot of money up for grabs if you can land.....read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Newly discovered biomarkers may lead to promising diagnostic.....read more
    Posted by AlexMuller
    Understanding cell segregation mechanisms which help prevent.....read more
    Posted by AlexMuller
    Unique features of individual brains captured..read more
    Posted by AlexMuller
    Lutein, found in leafy greens, may counter cognitive aging..read more
    Posted by AlexMuller
    New surgical strategy offers hope for repairing spinal injuries..read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me