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Comments on Undergrad Proposes Asteroids As Radiation Shields
Excellent idea from a 19 year-old undergrad - and Arthur C. Clarke - could get astronauts to Mars more safely. (Read the complete story)

"Other science fiction sources for this idea include 'Off on a Comet' by Jules Verne, published in 1877, as well as the 1995 novel 'Heart of the Comet' by David Brin and Gregory Benford."
(Bill 10/25/2006 8:01:05 AM)
"I wonder if a comet core with appropriate orbit is available? Is there enough extra protection from the higher percentage of hydrogen to be worth the effort of searching for a convenient comet core?"
(Colin 10/26/2006 12:35:10 PM)
"It would make a helluva project, wouldn't it? Pick a short period comet and create an instrument package that could survive for a complete orbit or two."
(Bill 10/28/2006 7:49:27 AM)
"I think the mass of the asteroid would make moving an asteroid for this purpose prohibitive. I like the ionized gas solution better. Less mass, less messing around."
(Tom 4/26/2007 9:29:26 AM)
"I am reminded of Dr. Buzz Aldrin's earth-mars cycler idea. That's for people who want to 'build their own' asteroids."
(bill 4/30/2007 1:23:20 PM)

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