Former Director of the ISS Division At NASA Talks About Science Behind 'Elysium'

Nerval's Lobster writes "In the new movie 'Elysium,' Earth a century and a half from now is an overtaxed slum, low on niceties like clean water and riddled with crime and sickness. The ultra-rich have abandoned terra firma in favor of Elysium, an orbital space station where the champagne flows freely and the medical care is the best possible. Mark Uhran, former director of the International Space Station Division at NASA headquarters, talked with Slashdot about what it would take (and how much it would cost) to actually build a space station like that for civilians. It turns out NASA did a report way back in 1975 describing what it would take to build a Stanford torus space station like the one in the movie: rotation for artificial gravity, a separate shield for radiation and debris, the ability to mine materials from astroids or possibly the moon, and $190.8 billion in 1975 dollars (the equivalent of $828.11 billion today). Looks like the ultra-rich are stuck on Earth for the time being." And still artificial gravity experiments languish.

Nine metric tons?

[Pikewake]

The article states that it would take nine metric tons of material to shield a single torus. The table in the original paper says 9.9 Mt. That's megatons, not metric tons. Slight difference...