The sums and the moon!

[Diflower]

That's rather a lot less than 73 years though

[Suff]

Well if she runs out of Oxygen it won't take long at all, only a few seconds.....

To the moon though???

A few good pushes and you could hit about 20mph. So only about 32 years. Terminal Velocity at the Moon would be a problem. though.... As they say, it's not the "Fee Fall" that kills you.....