The sun may be gone, but its light still lingers. At the Pole, sunset doesn’t just “happen”—it takes place slowly through prolonged stages of twilight, after the sun dips below the horizon, in which the light gradually diminishes until darkness reigns. That’s IceCube winterover Marc, above, outside the IceCube Lab as he gets ready to reflag the road between the ICL and the South Pole station, both pictured below. With such cold temperatures at the Pole, it can be dangerous to be outside any longer than you’re prepared for, so the flag lines connecting the station to other buildings serve an especially important guidepost function in the dark winter months.
