JS, RR and other scientists Saw on TV last night but not in my Miami Herald today. Most of our space rockets go up with Russian made rocket engines which are more powerful and more reliable then our own. Putnim threatened to stop selling them to us if we persist with sanctions over the Ukrainian situation, tsk, tsk. Hey JS you didn't factor in the cost of the rocket engine as well as the fuel necessary and what happens when a rocket fails and all that dangerous radiation water comes down on us people besides the number of rockets needed daily to send that much to the sun, tsk, tsk? We could parachute the engine back but I never heard it done? Suzpect not worth the effort? Personally I am too stupid to suggest a solution so it is more fun to shoot down the other's crack pot ideas of a very serious problem. A lot of real scientists are thinking about it but no viable answer. Comrade B