A couple of really good pictures in this article about a severe Martian dust storm. Nasa thinks they might be able to use wind turbines to provide electrical power for future missions.

Quote:
Mars is currently in the grip of the most severe dust storm seen in decades. A cloud of dust created by strong surface winds currently covers the entire face of the red planet.


http://www.newscientist.com/news/news.jsp?id=ns99991423

Jim H