You'd have to re-purpose something like a deep mining shaft from a diamond mine, then stick a giant rail gun in it, almost like Germany's V-3 cannon[1] but on s

You'd have to re-purpose something like a deep mining shaft from a diamond mine, then stick a giant rail gun in it, almost like Germany's V-3 cannon[1] but on steroids. [1]https://en.wikipedia.org/wiki/V-3_cannon https://en.wikipedia.org/wiki/V-3_cannon