Original sentence: According to the original HRSC/Mars Express feature  , the height difference between the crater floor and the surface of the water ice is about 200 metres.Deposits of water ice and layers of frost have been found in many different locations on the planet.ESA scientists have attributed most of this height difference to sand dunes beneath the water ice, which are partially visible.On 29 July 2005, the BBC reported that a visible "ice lake" had been discovered in a crater in the north polar region of Mars.While scientists do not refer to the patch as a "lake", the water ice patch is remarkable for its size and for being present throughout the year
Edited sentence: Like many thousands of other places on Mars, this ice sheet is a thin layer of frost that has condensed onto dark, cold sand dunes (about 200 m high) making their way across the bottom of the crater.On 29 July 2005, the BBC reported that a visible ice lake had been discovered in a crater in the north polar region of Mars.The BBC report however, appears to have either intentionally sensationalized or unintentionally mis-interpreted the original HRSC/Mars Express feature, which makes no claim or insinuation that this is a "lake".The only thing remarkable about this feature is that it is far enough north to maintain at least some frost throughout the year