[Ernest_at_the_Beach]

fyi

[Always Right]

Until the Martians started driving SUV’s, glaciers were fairly common on Mars.

[org.whodat]

White tips may be areas of freshly exposed ice

It may be martian poop to?

[mikrofon]

Dr Gerhard Neukum, chief scientist on the spacecraft's High Resolution Stereo Camera

I wonder what his nickname is.....

[RightWhale]

This is found in very few places on the Red Planet because as soon ice is exposed to the Martian environment, it sublimates - or turns from a solid state directly into gas.

Sublimation is not instantaneous. A mass of ice can last for a very long time.

[SunkenCiv]

The water subsequently froze over and glaciers developed, the researcher from the Free University in Berlin, Germany, explained. Not all researchers share his view of events. Some believe that snowfall causes glaciers to develop on Mars, as it does on Earth. But Gerhard Neukum thinks there is too little precipitation on the Red Planet for this to be the case.

10K to 100K age doesn't mean current activity. :') These events are due to shortlived heating events, such as are caused by impact (or possible volcanism, but Mars is volcanically speaking a dud as far as anyone knows); water ices in the soil go straight to vapor, creating a very temporary and outward-moving microclimate, allowing liquid water and mudslides (liquefaction) to exist for a short period. As soon as the vapor dissipated, back to ice it went. :') Thanks Ernest.

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[jeddavis]

The first humans to set foot on Mars could be reading this. My advice is as follows: Do not go to that place unarmed. You will not find anything walking around on the surface of the place. Inside those megaliths, inside the glassy tunnels, or at the bottom of that big trench it’s still unlikely but not altogethe rimpossible, you might come across a rat or a cockroach and because of the weaker gravity, the rat or cockroach might be ten feet long, and dialing 911 won’t help. What you want is one of those lever-action Marlin 45/70s.

[Kevmo]

Fascinating. bmflr

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According to Intrade, the winner of the December 12th GOP debate was... Duncan Hunter.
http://www.freerepublic.com/focus/f-news/1938773/posts

[Jedi Master Pikachu]

Why does this thread have so few comments?

This is big news.

(Just ranting....).

[aruanan]

Ancient glaciers, many millions of years old, have been seen before on the Red Planet, but these ones may only be several thousand years old.

"these ones"? Does this writer have an editor?