Warm-Season Flows on Slope in Newton Crater, Mars. ( Not PN ) by AURaptor

REAL WORLD EVENT DISCUSSIONS

Warm-Season Flows on Slope in Newton Crater, Mars. ( Not PN )

POSTED BY: AURAPTOR
UPDATED: Wednesday, June 12, 2013 10:40
SHORT URL:
VIEWED: 720
PAGE 1 of 1

Wednesday, June 12, 2013 1:51 AM

America loves a winner!

Somehow I missed this, so pardon if already posted.

This series of images shows warm-season features that might be evidence of salty liquid water active on Mars today. Evidence for that possible interpretation is presented in a report by McEwen et al. in the Aug. 5, 2011, edition of Science.

These images come from observations of Newton crater, at 41.6 degrees south latitude, 202.3 degrees east longitude, by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter. In time, the series spans from early spring of one Mars year to mid-summer of the following year. The images have been adjusted to correct those taken from oblique angles to show how the scene would look from directly overhead.

The features that extend down the slope during warm seasons are called recurring slope lineae. They are narrow (one-half to five yards or meters wide), relatively dark markings on steep (25 to 40 degree) slopes at several southern hemisphere locations. Repeat imaging by HiRISE shows the features appear and incrementally grow during warm seasons and fade in cold seasons. They extend downslope from bedrock outcrops, often associated with small channels, and hundreds of them form in rare locations. They appear and lengthen in the southern spring and summer from 48 degrees to 32 degrees south latitudes favoring equator-facing slopes. These times and places have peak surface temperatures from about 10 degrees below zero Fahrenheit to 80 degree above zero Fahrenheit (about 250 to 300 Kelvin). Liquid brines near the surface might explain this activity, but the exact mechanism and source of the water are not understood.

http://www.nasa.gov/mission_pages/MRO/multimedia/pia14472.html

NOTIFY: Y | REPLY | REPLY WITH QUOTE | TOP | HOME

Wednesday, June 12, 2013 6:42 AM

BYTEMITE

:· :o :0 :O :(¯)

(Also: Mars can get up to 80 to 95 degrees Fahrenheit. *did not know that*)

NOTIFY: Y | REPLY | REPLY WITH QUOTE | TOP | HOME

Wednesday, June 12, 2013 10:40 AM

AURAPTOR

America loves a winner!

Quote:
Originally posted by BYTEMITE:
:· :o :0 :O :(¯)

(Also: Mars can get up to 80 to 95 degrees Fahrenheit. *did not know that*)

Mars has global warming as well. But don't tell AlGore.

Fathom the hypocrisy of a government that requires every citizen to prove they are insured... but not everyone must prove they are a citizen

Resident USA Freedom Fundie

" AU, that was great, LOL!! " - Chrisisall

NOTIFY: N | REPLY | REPLY WITH QUOTE | TOP | HOME

YOUR OPTIONS

SHARE THREAD

NEW POSTS TODAY

USER	POST DATE

USER

POST DATE