That was the only sign that the spaceplane used cryogenic fuel.
Except even liquid fueled rockets don't use cryogenic fuels.
The resulting cryogenic fuel was then routed to the two separate tanks inside the ET for storage.
In contrast, cryogenic fuels need periodic topping-up of propellants as they boil off.
Another use of cryogenics is cryogenic fuels for rockets with liquid hydrogen as the most widely used example.
In contrast, cryogenic fuels would have required periodic topping-up of propellants as they boil off.
Both members of the family use liquid oxygen/liquid hydrogen cryogenic fuel.
The support systems included storage dewars for cryogenic fuels and a large water reservoir.
But the shuttle program is the only one to reuse engines that run on cryogenic fuel, according to experts.
All expander cycle engines need to use a cryogenic fuel such as hydrogen, methane, or propane that easily reach their boiling points.