Social Media Sidebar


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

Just because something doesn’t do what you planned it to do doesn’t mean it’s useless.


Thomas Edison

MAVEN uncovers secrets of Martian atmosphere loss

Posted in Science on 22nd Dec, 2014 11:06 PM by AlexMuller

Mars is regarded as the most Earth-like of the planets in the Solar System, but its atmosphere is only 0.6 percent as dense as Earth's and is constantly leaking into space. NASA'S Mars Atmosphere and Volatile Evolution (MAVEN) Mars orbiter is providing new insights into the loss of the Martian atmosphere by discovering how solar winds penetrate to surprisingly low altitudes.

Blessed with its powerful magnetic field, the Earth's atmosphere is protected from the constant blast of light, radiation, and subatomic particles emitted from the Sun. Mars however, is not so fortunate. What little magnetic field it has is extremely weak and patchy, and as the solar winds strike the upper reaches of the atmosphere, they strip it away atom by atom. How this process works is one of the key mysteries for scientists studying the planet.
NASA says that the MAVEN spacecraft, which is tasked with making a detailed study of the Martian atmosphere, has discovered a new process that demonstrates just how deep the impact of the solar wind is on the air around Mars. The unmanned orbiter's Suprathermal and Thermal Ion Composition (STATIC) instrument found a plume of ionized gas rising from the poles of Mars into the tenuous layer of ions and electrons, called the ionosphere, that ranges from 75 to 300 mi (120 to 480 km) above the surface, and was able to measure its temperature. As it orbits, MAVEN's lowest altitude dips into the ionosphere, allowing it to directly measure its temperature and composition.

Tags: MarsMAVENatmosphereplanetspaceNASA

Read original article » Back to category


Author: Guest
Posted: 2014-12-23
Finding out what happened to atmosphere around Mars believed to exist and protect a different planet with lots of water at that time - is the mission for MAVEN. It would be good to have a whole story Reply


Recent headlines

  • Posted in Medicine on 2018-05-23 01:38:21
    UCLA engineer develops 3D printer that can create more
    Posted in Business on 2018-05-23 01:43:09
    China Launches Satellite Bound for the Far Side of the more
    Posted in Business on 2018-05-21 16:28:10
    Anti-nuclear policies increased global carbon by more
    Posted in Medicine on 2018-05-21 16:22:31
    Magic mushroom treatment improves emotional more
    Posted in Medicine on 2018-05-21 16:18:57
    Antioxidant found to wind back the clock on blood more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs, more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target more

Recent Blog Posts

  • Posted by AlexMuller
    In five years quantum computing will be more
    Posted by AlexMuller
    Google partners with Johnson and Johnson to make lower more
    Posted by AlexMuller
    Electron holography microscope with spatial resolution down more
    Posted by AlexMuller
    Lower cost advanced Nuclear power could dominate future US more
    Posted by AlexMuller
    Why Hasn’t AI Mastered Language Translation? more

Login to your Account

Login to your PlanetTech Account here

Remember me

Create a New Account

You just need username and password

The following errors occured:
Verify password:
Remember me