Going to the moon is impressive, full stop. But the Apollo missions only get more impressive when you look at the details. There were its computers, which were smarter than widely accepted. Even something a mere foil coating needs to be supercharged to be spaceworthy.
Amy from Vintage Space has a piece to prove it:
This wasn't the only example of foil used in Apollo missions. The Solar Wind Composition Experiment on Apollo missions 11, 12, 14, 15, and 16 where made of aluminium foil as well. Exposed to the sun for as long as 45 hours, solar wind particles would get caught in the foil for study back on Earth. These results made measuring how the Earth's magnetic field affects arriving solar wind particles a viable possibility.
From recovery to research, foil played a crucial role in every step of the Apollo missions.
Source: Vintage Space/Tom Scott