00:00Let's move on to one of the most important, yet least understood topics in spaceflight,
00:06cryogenic propellants. Liquid hydrogen and oxygen are efficient but extremely demanding.
00:13Without active systems, they evaporate. And evaporation quite simply means loss of range.
00:19That's why Blue Origin is specifically working on zero-boil-off technologies and reported a major
00:26breakthrough in 2025. That means active cooling, intelligent insulation, and above all, energy
00:34management over long periods of time. Why is this so crucial? Because it makes the difference between
00:41a one-time landing and a repeatable lunar logistics system. Zero-boil-off is the prerequisite for
00:48propellant depots in lunar orbit, landers that can be used multiple times, and long-term Artemis
00:55architectures, but also for their ambitions to reach Mars.
