by Jonathan Coopersmith
Space is dangerous. And, consequently, expensive. That first fact was brought painfully home the morning of Feb. 1 as the space shuttle Columbia disintegrated while reentering the earth's atmosphere. The second fact will be relearned in the coming weeks as we emerge from our shock at this tragedy and decide where our space program should go from here. Cost, not risk, may prove the decisive factor.The loss of Columbia was a visible disaster that should fittingly reignite the debate about the safety of the shuttle and spark a reassessment of NASA's goals, as well as discussion about the role of human beings in space. In the history of technology, a visible disaster is a failure of a technology in such a public manner that long-standing issues can no longer be ignored.Sadly, it often takes the loss of life, like that on February 1, to focus attention and resources on problems that many knew about but lacked the political power or will to resolve. International politics is no longer the important factor it was in previous space disasters, and such considerations need not influence the choices we face, which can thus be made on their own merits.