Comments on: Mars Gullies Produced by Dry Granular Debris and Not by Recent Water Flow

By: How to Get Six Pack Fast

How to Get Six Pack Fast — Wed, 15 Apr 2009 16:45:20 +0000

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By: Wigs

Wigs — Wed, 17 Dec 2008 19:44:42 +0000

There’s no water on mars, never was.

By: Wigs

Wigs — Sat, 07 Jun 2008 00:36:55 +0000

I know a couple of people I wouldn’t mind sending on a one way trip to Mars to see if there’s any water on it.

By: Zeta Connection » Blog Archive » Study: Mars gullies formed by landslides, not water

Tue, 11 Mar 2008 17:02:08 +0000

[...] Gullies found in 2005 images that appeared to show gully formation created by the rapid release of water have on further examination turned out to be created from the flow of granular debris, or landslides, according to Universe Today. [...]

By: Chuck Lam

Chuck Lam — Tue, 04 Mar 2008 07:36:13 +0000

Astrofriend’s reference to temperature is most likely correct. As everyone knows, water is liquid within a very narrow temperature range. It is true, however, that there may be a volcanic hot-spot that could maintain liquid water. Maybe an early snow-ball comet smacked into Mars near or onto one of the hot-spots. Scifi? Maybe not!

By: GBendt

GBendt — Mon, 03 Mar 2008 23:33:28 +0000

The temperature on Mars as well as the atmospheric pressure are too low to allow any liquid water to exist on the martian surface.
Nevertheless it seems that Mars does not care about our concepts of science. There is stuff flow ingat places and at conditions where we were taught that nothing can flow. Seems there are plenty of facts of which we do not have an idea yet. Within a couple of years from now, we will hopefully know a lot more.

Every computer simulation is based on a set of formulas that are together meant to describe the behaviour of a system. If this description is incomplete because not all aspects of the system were available and considered properly, the simulation may yield an impressive result, but a wrong one.

Many people hope that we may find liquid water on Mars. The idea of fresh water seeping from the slopes of a hill on a planet , makes such a planet to become something earthlike and inhabitable, something worth while to conquer. Such an idea is of some help if you struggle for more funds for the exploration of Mars.

The result of these exploration may very well be that we will estimate our planet higher than ever. So let us explore that remote, cold dry, airless and most unpleasant place. It will help us.

Not everything that is flowing on Mars must necessarily be water. Perhaps it might make you shiver and turn your inside out once you take a sip of it.

Regards,

GÃ¼nther

By: Alphonso Richardson

Alphonso Richardson — Mon, 03 Mar 2008 10:32:04 +0000

Oh well, keep looking, they may turn something up. Then again…………………..

By: Astrofiend

Astrofiend — Mon, 03 Mar 2008 00:36:11 +0000

“NeoGuru Says:
March 2nd, 2008 at 11:14 am

Has anybody else noticed that the temperature on Mars is cold enough to freeze CO2? …”

Yeah, but water has a very high specific heat capacity, which means that it can store a lot of heat energy. Hence, it would take a while for it to freeze solid if it was hot and then suddenly gushed out onto the surface.

There are a few conceivable scenarios in which warm water could be located not too far from the surface and then expelled, but nobody knows how likely or not they may be. Hence the interest over this result.

By: Burzycki.org - Tech and Interesting Facts

Burzycki.org - Tech and Interesting Facts — Sun, 02 Mar 2008 20:37:05 +0000

[...] Mars Gullies Produced by Dry Granular Debris and Not by Recent Water Flow March 01st, 2008 | Category: Astronomy, Contributors The High Resolution Imaging Science Experiment (HiRISE) on board NASA’s Mars Reconnaissance Orbiter (MRO) observed what appeared to be fresh gullies formed by a rapid release of water on the Martian surface in 2006. However, new computer models simulating the creation of gullies on the surface of Mars suggest that they are in fact created by the flow of dry debris (i.e. landslides) and not by the flow of water. A blow for the microbial life hunters and a huge blow for mission planners looking for easy sources of water for manned missionsâ€¦ (moreâ€¦) [...]

By: Kevin Koski

Kevin Koski — Sun, 02 Mar 2008 19:16:55 +0000

Lets see what the Pnoenix tests arrive at for a conclusion, and what else the MRO will find,probaly just at the poles now in the form of water ice,should be an exciting time.