Every ninety minutes, the crew orbiting high above Earth watches another sunrise break over the planet, which means that in a single day they see sixteen dawns and sixteen dusks, and their bodies have no idea what time it is anymore.

The astronauts aboard experience a biological nightmare: their circadian rhythms shattered by sixteen artificial days compressed into each Earth day. The post Every ninety minutes, the crew orbiting high above Earth watches another sunrise break over the planet, which means that in a single day they see sixteen dawns and sixteen dusks, and their bodies have no idea what time it is anymore. appeared first on Space Daily .