the letter to be read if the moon landing went wrong

How history could have been all so different, and the risks that were involved in the Moon landings. This is the letter that was to be read if the Apollo 11 Moon landing went pear shaped in 1969, and the astronauts couldn't leave the Moons surface after landing there. That would have been one hell of a way to go and meet your maker, but l would still rather have come back, even if it was just to annoy everyone else who hadn't been up there. And let's face it, l certainly would have.
Now if only l had been an astronaut..... (I, naturally,  blame my parents)

toodle pip