Re: Its the wrong way to get off this planet
"Perch your payload on top of a nuclear bomb and light the fuse. I'm no von Braun, but I reckon some of it might reach escape velocity."
It's been tried (accidentally). during an underground nuclear test in the 50's a steel cap was launched at a speed greater than 65 km/s, well over escape velocity (the high speed camera only captured a single frame, so it could have been traveling much faster). however it's doubtful it reached space, more than likely it was vaporized during the ascent.
https://en.wikipedia.org/wiki/Operation_Plumbbob#Propulsion_of_steel_plate_cap