Christmas on the ISS

Christmas on Earth is generally exhausting. But that has nothing on the troubles a so called Christmas Eve causes on the International Space Station (ISS).

Prof. Dr. Heinz Oberhummer explores: When exactly is the evening beginning on the ISS? Which problems occur when lightning a candle at zero gravity? How long can a candle burn at zero gravity?

You can't eat fresh bread on the ISS, nor a crispy goose, nor drink sparkling wine or beer.
Even Christmas cookies can be life-threatening on the ISS. Mag. Werner Gruber explains all of that and limits the menu.

By the way: What part of the candle does actually burn? Dr. Oberhummer explains in an experiment at a high-security-level why a candle does burn.

The clip (currently only available in German)