Whats it like to be on Venus or Pluto? Sand dunes give some clues - Business Standard

For dunes to even exist, there are a pair of "Goldilocks" criteria that must be satisfied. First is a supply of erodible but durable grains.

What is it like to be on the surface of Mars or Venus? Or even further afield, such as on Pluto, or Saturn’s moon Titan? This curiosity has driven advances in space exploration since Sputnik 1 was… [+5368 chars]

full article...