That's not tin foil it's a highly engineered material known as MYLAR. Back in the '60s it had special properties that allowed 5 mil sheet to block space rays. Nowadays the physics have changed which is why NASA is combing the materials science research for a suitable replacement for Orion.
Gold tin foil blocks radiation from the Van Allen belt
That's not tin foil it's a highly engineered material known as MYLAR. Back in the '60s it had special properties that allowed 5 mil sheet to block space rays. Nowadays the physics have changed which is why NASA is combing the materials science research for a suitable replacement for Orion.
What about the physics has changed
physics has literally changed that's why going to the moon so hard now