Conversation

This Tweet is unavailable. Learn more

Replying to

drop a 1000t rock from moon dist: 8TJ when it enters the atmosphere (Hiroshima=63TJ), but will burn up before it hits, so: no.

Replying to

and

but will it burn up? it's dropping straight down, that's a way shorter trip through the atmosphere

Replying to

yes it will, at best you get a few pebbles

Replying to

btw, to drop straight down from the moon, you'd have to fully nix the moon's delta v, i.e. you gain nothing