Speaking of subzero, check out these videos of the hydroponics greenhouse at the McMurdo Station in Antarctica.
Conditions at Ross Island are obviously favorable for something verdant. Temperatures outside are lethal with prolonged exposure. The sun doesn't make an appearance for months. And the population of pollinating insects is nil.
That the available exposed land in the world's biggest desert is less than 1% only necessitates the creation of a garden.
The guy in the upper left is our unnamed guide, who seems rather cool and fun to hang out with, to what is essentially the most vegetated parcel in the entire continent: "Everyday is a perfect day. It's always sunny. It's always perfect weather.”
Amidst a field of Antarctic romaine, cucumber, tomatoes, and tarragon, you can calibrate your internal biorhythms and mitigate your seasonal suicidal tendencies.
Subzero Gardening @ Exploratorium