Blogger reaction to the Columbia tragedy today:

Glenn Reynolds.com: Mourn and Move On--Glenn makes the case for not letting this roll back the space program, but rather, forging ahead.

Stephen Green of Vodkapundit: Bad Day for Bitterness --Eloquent, with similar thoughts to Glenn, including criticism of NASA.

Patrick Nielsen Haydenquotes the William Gibson weblog: "nobody ever said it would be risk-free. If it were, it wouldn’t be glorious. And it’s only with these losses that we best know that it really is."

Atrios: "To those who think it's inappropriate to mourn some lives more than others - well, it's the only way we can mourn at all."

Calpundit: "We learn from our mistakes, but we should never allow fear of failure to keep us from pushing the boundaries of what we can accomplish. Death — and recovery from death — are a fundamental part of the human condition, a lesson that we are re-learning rather more often than we'd like in the first few years of the 21st century."

This Washington Post article is really good too--"People who work on the program understand that failure is part of the enterprise. When he retired in 2001, Dan Goldin had a message for the assembled NASA staff at headquarters in Washington: "Be bold and don't fear failure. Treat failure as a blessing, because mediocre goals are poison."