Medical Definition of coprophilia. : marked interest in excrement; especially : the use of feces or filth for sexual excitement.
A scramjet (supersonic-combustion ramjet) is a ramjet engine in which the airflow through the whole engine remains supersonic. The highest speed attained by a rocket-powered airplane, NASA's X-15 aircraft, was Mach 6.7. The fastest air-breathing, manned vehicle, the SR-71, achieved slightly more than Mach 3. The X-43A more than doubled the top speed of the jet-powered SR-71.
The lunakhods could travel up to 2 km / hour. The lunar rovers were even faster, fastest 11 mph, and with more bandwith we could drive rovers on the Moon as fast as them from Earth. We could send vehicles like that to Mars. Lunakhod 2 was 840 kg, and Curiosity, 899 kg, so they are similar size.