Sunday, March 20, 2011
Better than an NO2 shot?
This was first proposed by (1), used around the earth by (2), used in interplanetary travel by (3), and still remains in use by (4). What?
Cracked by: shrik, jowens, Rogi, Dibyo, krudebox, dineshk, Ananth and Raghuvansh
Show Answer
The Gravitational Slingshot, or Gravity Assist. Developed by Michael Minovitch. Used by Luna 3, Mariner 10, and now most recently by MESSENGER (which just inserted itself into orbit around Mercury!)

