Sunday, February 26, 2017
Contact us    |    Advertise    |   Help   RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in

Does water flow on the surface of Mars ?


Posted on Friday, 20 December, 2013 | Comment icon 21 comments

These dark streaks are thought to be caused by water. Image Credit: NASA / HiRISE
Dark streaks on photographs taken from orbit could be indicators that water does flow on the Red Planet.
Despite freezing temperatures and a landscape that seems for all intents and purposes to be as dry as a bone, scientists believe that there are still hints that liquid water is able to flow, albeit rarely, on the surface of Mars.

The most tantalizing evidence of this has come in the form of photographs taken by NASA's Mars Reconnaissance Orbiter which show strange dark streaks that seem to grow and shrink in time with the seasons. It is believed that these streaks could be patches where water has seeped on to the surface during warmer periods.

"The subsurface is probably the best place to find present-day life if it exists at all because it is protected from the radiation and temperature extremes," said planetary scientist Alfred McEwen. "Maybe some of that water occasionally leaks out onto the surface, where we could see evidence for that subsurface life."

Source: Nature.com | Comments (21)

Tags: Mars


 
Recent comments on this story
Comment icon #12 Posted by Hazzard on 21 December, 2013, 16:43
lets go back to September when Nasa announced existence of "water soaked" soil back then; of course there is flowing water on Mars still, there are lakes and seas of water down below underneath the surface. It's a fact! ...well there is life too, but robots can't see it... http://www.spacenews...in-martian-dirt Take it to the UFO/ET section,... this one is for real science.
Comment icon #13 Posted by Bildr on 22 December, 2013, 4:42
Take it to the UFO/ET section,... this one is for real science. Say that to CNN http://www.cnn.com/2013/09/30/tech/innovation/mars-water/
Comment icon #14 Posted by qxcontinuum on 22 December, 2013, 5:26
Take it to the UFO/ET section,... this one is for real science. Read more boy...
Comment icon #15 Posted by mfrmboy on 23 December, 2013, 19:33
Wish they would send a drone so more ground could be covered.
Comment icon #16 Posted by skookum on 28 December, 2013, 9:08
I didn't think that water could exist in flowing liquid form because of the thin atmosphere?
Comment icon #17 Posted by Peter B on 28 December, 2013, 9:38
Wish they would send a drone so more ground could be covered. How would it stay up? Mars's atmosphere at the surface is about 1% of the pressure of Earth's atmosphere at the surface. A bit tricky trying to fly in that. And how long would it be able to stay up (assuming a way could be found to make it fly)? What's the record for an Earth drone staying aloft? I understand people have tossed around plans involving helium balloons to float around the place. But they can't be steered. I reckon I'd swear a bit if errant winds blew my balloon just out of range of a site of interest.
Comment icon #18 Posted by seeder on 28 December, 2013, 9:40
How would it stay up? Mars's atmosphere at the surface is about 1% of the pressure of Earth's atmosphere at the surface. A bit tricky trying to fly in that. And how long would it be able to stay up (assuming a way could be found to make it fly)? What's the record for an Earth drone staying aloft? I understand people have tossed around plans involving helium balloons to float around the place. But they can't be steered. I reckon I'd swear a bit if errant winds blew my balloon just out of range of a site of interest. heres a 5 year drone... but its orbital...and solar http://arstechnica.com/info... [More]
Comment icon #19 Posted by DONTEATUS on 28 December, 2013, 17:46
Soon we will send man,then He can wet our Imaginations !
Comment icon #20 Posted by Waspie_Dwarf on 31 December, 2013, 11:16
I didn't think that water could exist in flowing liquid form because of the thin atmosphere? Pure water can't. Extremely salty water can. Besides it appears that this water does not remain on the surface long. It appears, flows then disappears again.
Comment icon #21 Posted by DONTEATUS on 2 January, 2014, 0:02
How about underground water? Thats where it all is I would guess. Soon we should know !


Please Login or Register to post a comment.


  On the forums
Forum posts:
Forum topics:
Members:

5852563
251334
165779

 
Pollution can outweigh benefits of exercise
2-26-2017
In some of the world's most polluted cities, exercising outside can actually do more harm than good.
Group of kids scared by 'goblin' in Argentina
2-26-2017
Bizarre footage posted online recently shows a mysterious assailant crawling towards some youths.
Desert people evolve to drink poisonous water
2-25-2017
The local people of Chile's Atacama desert have developed the ability to drink water laced with arsenic.
Astronauts could fly around the Moon by 2019
2-25-2017
NASA is considering whether to send a crew on its first integrated Orion, SLS flight around the Moon.
Featured book
 
By Guy Lyon Playfair
A look at the story of Peggy Hodgson and her four children who, between 1977 and 1979, were at the center of one of the most terrifying poltergeist cases ever documented.
Featured Videos
Gallery icon 
Exploding batteries in slow motion
Posted 2-26-2017 | 0 comments
The Slo Mo Guys return, this time with a slow motion recording of exploding batteries.
 
Crushing cans
Posted 2-25-2017 | 3 comments
Muhammad Rashid from Pakistan crushes 77 cans with his elbow within one minute.
 
Is time real ?
Posted 2-24-2017 | 0 comments
Bill Nye talks about the concept of time and how our subjective perceptions of it can change.
 
Is it possible to re-freeze the Arctic ?
Posted 2-23-2017 | 1 comment
Scientists have proposed a rather unorthodox solution to the problems caused by climate change.
 
Giant horse conch
Posted 2-22-2017 | 1 comment
A huge conch makes light work of a tulip snail which fails to make its escape.
 
 View: More videos
Stories & Experiences
Saved by a stranger
2-7-2017 | Green River Wyoming
 
Spooky sense
2-4-2017 | India
 
Ghost car
2-4-2017 | Chicago, IL, USA
 
Mysterious powder
2-4-2017 | USA, North Carolina
 
Puerto Rico UFO sighting
2-4-2017 | Sabana Grande, Puerto Rico
 
Phantom vehicle
1-6-2017 | Ramer, United States
 
True ghost stories
1-6-2017 | Southern California
 
Floating tiles
1-6-2017 | Chewelah, Washington
 
A haunting in Northern California
12-28-2016 | Northern California
 
Strange creature in South Africa
12-28-2016 | South Africa, Hoedspruit.
 

         More stories | Send us your story
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.7 Unexplained-Mysteries.com 2001-2017
Privacy Policy and Disclaimer   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ