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Tag Archives: space

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Mars Expedition Has Trouble Staying In Orbit

Part of the Mars One plan is to keep colonists alive by sending them regular packages of supplies to supplement their own colony-based projects to create and maintain supplies of water, air and food. What happens if one of those resupply missions is delayed by two years?

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Bicycles, Car: What's The Problem Here?

Take a close look at this picture. How many people are riding the bicycles? How much space do they take up? What is the density of bicycles per unit area on the road? How much space does the person driving the car take up? What

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Star Trek It's Not

Space seems to be, at least for the present, a lot more about what’s going on down here on Earth than it is about great adventures out in the void. What’s going on down here on Earth, in our government’s view, seems to be in large part a military consideration.

Psst... what kind of person doesn't support pacifism?