And back in January, reports were surfacing that
all was not necessarily as it seemed to be on Mars, and that surface ages may have been wildly overestimated...
Oh. Dear.
http://www.spacedaily.com/news/mars-general-03a.html
http://www.geolsoc.org.uk/template.cfm?name=OldMarsAlmanack
I predict: Fifty Years before the planetary science field accepts the notion that crater counting for age dating on Mars can only be partially successful, the error margin is very wide, and many surfaces are far younger than widely believed -- leading to the conclusion that the near subsurface of Mars is currently active, warm and wet.
Fifty Years.
Cheers, BFelix