The "No Sound theory is not properly explained in "MythBusters", who's list of inaccuracies and implementation of "proofs' made the show unwatchable. The energy waves of such an explosion need hit the hull of a ship, and that would be turned into mechanical force. If you were in a space suit, the face mask, or helmet, would also pick up energy waves, and the air in your suit would carry that sound. If you naked in space, you wouldn't hear anything, but that could be because you would be dead.
Their improper mounting of a Hydrogen Booster on a car (they covered up the Venturi with a plate and ran a small hose) then feigned shock when it would not start. Lo and Behold, they discover running the car on straight hydrogen with no gas at all had the engine running like a bat pout of hell. Since they were running too much, they had horrific hydrocarbon backfires.
There are 100,000's of tractor trailer trucks and delivery trucks using these units, reporting a 5 to 105 increase in fuel mileage,m some of the long haulers more. That may not sound like much, but your car runs better. You have to lift the 02 sensor out of the exhaust stream, or your cars sensor reads a lean condition, and the computer enriches the system, defeating the whole purpose. You use what is called an E.F.I.E., to make the mixture right, and that is simple enough, but the fact is, your average car produces far more current than it uses, and it is dissipated at heat. Why not use hydrogen to make your gas burn better. It works, you can buy commercial grade systems, if it's easy to make Hydrogen, and if you have a leak, the stuff rises so fast, it dissipates, and leaves the atmosphere. The most abundant element in the universe. No money to be made though, no on the scale of fossil fuels, which America is now the largest producer of in the world.
I was so happy when that show finally went off the air. I hope it never makes syndication.