
NASA’s Artemis I mission ushered in a new era of space exploration last month, with the launch of the first in a series of complex missions to enable human exploration of the moon and Mars.
Despite challenges with supercooled liquid hydrogen leading up to the Nov. 16 launch, the mission successfully utilized the universe’s lightest and most abundant element to produce enough energy to power four engines with 2 million pounds of thrust. The other main by-product was water vapor.