Many folks would like to see us back on the Moon and developing its resources.

Monday, September 15, 2003

What is escape velocity?: "Space Environment
How does gravity work in space?

What is escape velocity?
Escape velocity is the speed that an object needs to be traveling to break free of a planet or moon's gravity well and enter orbit. For example, a spacecraft leaving the surface of Earth needs to be going 7 miles per second, or nearly 25,000 miles per hour to enter orbit."

SEE TABLE ON ESCAPE VELOCITY
Earth 11.2 km/sec 25038.72 mph

Jupiter 59.5 km/sec 133018.2 mph

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