Monday, July 25, 2016
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:

5729522
259933
161407

 
Has 'Beast of Bodmin' mystery been solved ?
7-24-2016
A zoo owner has come forward with information that could help to explain the alien big cat phenomenon.
New metal is four times tougher than titanium
7-24-2016
Scientists have created a brand new type of super-metal by melting together titanium and gold.
Defense firm buys out hoverboard company
7-24-2016
The jet-powered Flyboard Air hoverboard may soon be seeing use in a range of military applications.
Da Vinci's scribbles reveal hidden knowledge
7-23-2016
Sketches demonstrating the laws of friction have been identified within the margins of Da Vinci's notes.
Featured Videos
Gallery icon 
Real-life Pokemon
Posted 7-24-2016 | 1 comment
Are there any animals in the real world that could be considered actual real-life Pokemon ?
 
Trans-Atlantic solar powered flight
Posted 7-23-2016 | 0 comments
A look at Solar Impulse 2, the aircraft that crossed the Atlantic using the power of the sun.
 
The Earth from space
Posted 7-22-2016 | 0 comments
A view of our home planet as seen through the EPIC camera on the NOAA's DSCOVR satellite
 
How are Oreos made ?
Posted 7-21-2016 | 2 comments
A look at the manufacturing processes involved in the creation of Oreo cookies.
 
Extreme landscapes: Death Valley
Posted 7-20-2016 | 0 comments
A look at Death Valley where, in 1934, temperatures soared to 134 degrees fahrenheit.
 
 View: More videos
Stories & Experiences
Light in Orion
7-23-2016 | Tampa, Florida
 
Girl with the broken neck
7-23-2016 | Mississippi
 
Holes in cotton clothing
7-23-2016 | Somerset, UK
 
Three knocks in the night
6-28-2016 | Cedar City, Utah
 
Mr Button and laurel leaves
6-28-2016 | Unknown
 
Knocking on the door
6-28-2016 | Virginia, United States
 
Not in our jurisdiction
5-2-2016 | California, United States
 
Zippers and headlights
5-2-2016 | Raleigh, United States
 
Spinning, voiceless and breathless
5-2-2016 | Garland, Texas
 
Paralyzed
4-15-2016 | United States
 

         More stories | Send us your story
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.7 Unexplained-Mysteries.com 2001-2015
Privacy Policy and Disclaimer   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ