"Landing on Mars is very difficult, and it's harder on some parts of the planet than others, " says Dr Ed Weiler, associate administrator for space science at Nasa in Washington, DC.

BBC: Gusev crater (Nasa)

So it was for this reason--against all common sense--that we organized our expedition into the Cardamoms, guided by Hunter Weiler of the conservation group Fauna and Flora International and Department of Wildlife enforcement officer Chheang Dany.

CNN: ASIANOW - TIME Asia | 'There Was Method to My Madness'

Instead of taking a walk that cold night, Merckle drove to the suburb of Weiler, parked his car in the Ratiopharm lot and walked a few hundred yards to the train tracks that run past the plant.

FORBES: Up in Smoke

In looking at election data from 1992, 2000 and 2002, political scientists Marc Hetherington of Vanderbilt University and Jonathan Weiler of the University of North Carolina at Chapel Hill found that places where spanking is more likely to be used to discipline children tend to lean Republican.

CNN: STORY HIGHLIGHTS