We have been pretty lucky so far this winter - since we don't live in the North East and haven't had to deal with a Polar Vortex! We haven't had sub-zero temperatures or even very many days of frosted windows. So how cold is it really in America?
ABC News reports a radical ideal has been proposed in the Journal of Cosmology: Send astronauts to explore Mars, but leave them there to colonize it. Would you boldly go to Mars if you knew you would never come home?