Comment Re:One sad conclusion (Score 5, Informative) 221
You ever run a front end loader? In January when the temperature is 9 below zero Fahrenheit? You know the 'scoop' on the front of the loader is called a 'bucket'? What happens when the loader operator digs into a pile of steaming coal, or gravel? The material is 'steaming' because it is warmer and wet than ambient air. The bucket is -9 degrees F, and the material freezes in the bucket. What does come out of the bucket goes into a dump truck (in some cases), where it freezes to the inside walls, corners and bottom of the dump body.
At the end of the day, the truck driver, and the loader operator have to dig that material out by hand, with a shovel. Been there, done that.
Why would it be any different on mars with colder temperatures, and 38% earth normal gravity?