|
|||||||||||
Pakistan's premier website that covers current affairs and news. |
|||||||||||
|
Mars Loses Its Water Even Faster Than Anyone Thought Water might escape Mars more effectively than previously thought, potentially helping to explain how the Red Planet lost its seas, lakes and rivers, a new study finds. |
||||||||||
|
Although Mars is now cold and dry, winding river valleys and dry lake beds suggest that water covered much of the Red Planet billions of years ago. What remains of the water on Mars is mostly locked frozen in the Red Planet's polar ice caps, which possess less than 10% of the water that once flowed on the Martian surface, prior work has suggested. Australia FireTime magazine subscription in Pakistan Shallow pits are seen in the bright residual cap of dry ice, which is a solid form of carbon dioxide. The deeper, circular formation in the top right could be an impact crater or a collapse pit (see left) |
||||||||||
|
|||||||||||
Previous research has also indicated that Martian water mostly escaped into space. Ultraviolet radiation from the sun breaks apart water in Mars' upper atmosphere to form hydrogen and oxygen, and much of this hydrogen then floats off into space, given its extraordinarily light nature and Mars' middling gravity (which is just 40% as strong as Earth's). |
|||||||||||
|
|||||||||||
Recent findings suggested that large amounts of water might regularly make rapid intrusions into Mars' upper atmosphere. To shed light on these events, scientists analyzed data from the Mars-circling Trace Gas Orbiter, which is part of the European-Russian ExoMars program. The scientists focused on the way water was distributed up and down the Martian atmosphere by altitude in 2018 and 2019 To read complete report please subscribe to the Discover magazine
Left. After making a successful landing on Mars on Nov. 26, 2018, NASA's InSight robot sent back a "selfie," taken from its Instrument Deployment Camera (IDC). Share your views at editor.newsflash@gmail.com |
|||||||||||
Posted on January 11, 2020 Five things to know about Indian Kashmir's changed status NASA astronaut's new distinction. Pakistan to restore visa services for Afghan nationals. Oops! Twitter ‘sorry’ for sharing user data with advertisers without permission. What’s new? Hashim Amla: South Africa batsman retires from international cricket
|
|||||||||||
|
|||||||||||
|
|||||||||||
Send your contributions at editor@newsflash.com.pk |
Want to get news alerts from
newsflash.com.pk? Send us mail at
newsalerts@newsflash.com.pk
Copyright © 2006 the Newsflash All rights reserved
This site is best viewed at 1024 x 768