Sunday, April 30, 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:

5896120
253612
166918

 
Did Vikings bury, cremate 'dead' houses ?
4-30-2017
There is evidence to suggest that Viking longhouses were 'buried' by being covered in mounds of Earth.
Real-life Iron Man shows off suit in Vancouver
4-29-2017
The inventor of the impressive flying suit demonstrated his creation at this week's TED conference.
Cassini survives, returns breathtaking images
4-29-2017
NASA's Cassini spacecraft has captured a series of impressive new photos during its death-defying dive.
Time travel is 'mathematically possible'
4-29-2017
According to Professor Ben Tippett, traveling through time is not outside the realms of possibility.
Featured Videos
Gallery icon 
Slow motion destruction
Posted 4-30-2017 | 0 comments
Gav returns with a video showing wanton destruction in glorious slow motion.
 
Giant Rolo
Posted 4-29-2017 | 1 comment
Barry and James create the world's largest Rolo using piles and piles of chocolate.
 
Gliding leaf frogs
Posted 4-28-2017 | 0 comments
These remarkable amphibians use their webbed feet to help them glide through the air.
 
Venus flytrap anemone
Posted 4-27-2017 | 0 comments
A look at one particularly unusual creature which lives down at the bottom of the ocean.
 
Lightning seen from space
Posted 4-26-2017 | 0 comments
Astronaut Thomas Pesquet captured this footage from the International Space Station.
 
 View: More videos
Stories & Experiences
Is the Boar Man real ?
4-26-2017 | Wichita Mountains, Oklahoma
 
Possessed boom box 1988
4-26-2017 | Santa Ana
 
Grandpa's visit
4-14-2017 | Portugal
 
Mysterious dog
4-14-2017 | Utah
 
A night to remember
4-14-2017 | Philippines
 
 
Am I going crazy ?
3-30-2017 | South Africa
 
 
Sleep paralysis or my father ?
3-30-2017 | Los Angeles
 
My nightly occurrences
2-28-2017 | Manchester, UK
 

         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