Watcher Forum
Would you like to react to this message? Create an account in a few clicks or log in to continue.


Welcome to Watcher Forum
 
HomeLatest imagesSearchRegisterLog in

 

 This Mountain On Mars Is Leaking

Go down 
AuthorMessage
Guest
Guest




This Mountain On Mars Is Leaking Empty
PostSubject: This Mountain On Mars Is Leaking   This Mountain On Mars Is Leaking I_icon_minitimeMon Apr 13, 2015 7:24 am

This Mountain On Mars Is Leaking






Jason Major - Universe Today





This Mountain On Mars Is Leaking Lkkgbcizivwwjbdsdmkv


As the midsummer Sun beats down on the southern mountains of Mars, bringing daytime temperatures soaring up to a balmy 25ºC (77ºF), some of their slopes become darkened with long, rusty stains that may be the result of water seeping out from just below the surface.

Seasonal flows spotted by HiRISE on northwestern slopes in Hale Crater. 


(NASA/JPL/University of Arizona)


The image above, captured by the HiRISE camera aboard NASA’s Mars Reconnaissance Orbiteron Feb. 20, shows mountain peaks within the 150-km (93-mile) -wide Hale Crater. Made from data acquired in visible and near infrared wavelengths the long stains are very evident, running down steep slopes below the rocky cliffs.



These dark lines, called recurring slope lineae (RSL) by planetary scientists, are some of the best visual evidence we have of liquid water existing on Mars today – although if RSL are the result of water it’s nothing you’d want to fill your astro-canteen with; based on the first appearances of these features in early Martian spring any water responsible for them would have to be extremely high in salt content.



According to HiRISE Principal Investigator Alfred McEwen “[t]he RSL in Hale have an unusually “reddish” color compared to most RSL, perhaps due to oxidized iron compounds, like rust.”


See a full image scan of the region here, and watch an animation of RSL evolution (in another location) over the course of a Martian season here.


This Mountain On Mars Is Leaking Vcidw9lk5wttahuv5v6r


Perspective view of Hale crater made from data acquired by ESA’s Mars Express. Credit: ESA/DLR/FU Berlin (G. Neukum)


Hale Crater itself is likely no stranger to liquid water. Its geology strongly suggests the presence of water at the time of its formation at least 3.5 billion years ago in the form of subsurface ice (with more potentially supplied by its cosmic progenitor) that was melted en masse at the time of impact. Today carved channels and gullies branch within and around the Hale region, evidence of enormous amounts of water that must have flowed from the site after the crater was created. (Source.)


This Mountain On Mars Is Leaking Bqjgz0stgmp3a0hhhetm


THEMIS image of channels in the southeastern ejecta of Hale crater. Credit: NASA/JPL-Caltech/Arizona State University. (Source.)


The crater is named after George Ellery Hale, an astronomer from Chicago who determined in 1908 that sunspots are the result of magnetic activity.


Read more on the University of Arizona’s HiRISE site here.


Sources: NASA, HiRISE and Alfred McEwen


This article by Jason Major originally appeared on Universe Today. It has been republished with permission.








http://io9.com/this-mountain-on-mars-is-leaking-1697343091
Back to top Go down
 
This Mountain On Mars Is Leaking
Back to top 
Page 1 of 1
 Similar topics
-
» FEAR & TERROR on MARS! Ancient Mars Atmosphere, Phobos News & More Propaganda
» SPRING'S 2-23-2012 = GO BACK TO MARS SOCIALIST DEMONCRATS!
» After detecting life on Mars in 1976 and sweeping it under the rug, NASA banned life-detection experiments to hide the truth from the world
» Discovery Suggests David Flynn Was Right! Ancient Mars Had Massive Lake, Was Potentially Life Sustaining "Wet Planet" (Before A Cosmic War In Bible?)
» Scientists Astonished By Incredible Mars Discovery That Appears To Support David Flynn’s “Cydonia: The Secret Chronicles Of Mars”

Permissions in this forum:You cannot reply to topics in this forum
Watcher Forum :: Welcome! :: General Discussion-
Jump to: