“ Sudden End? By no stretch of the imagination is "human spaceflight [] about to come to a sudden end in America." Even though the Space Shuttle has... (read full comment) ” 

Posted on May 24, 2011 at 10:34 AM EDT

“ Or, they might have used any of the several barometric altimeters available commercially to rocketeers -- many for <$100 -- to measure the actual... (read full comment) ” 

Posted on November 30, 2009 at 9:42 AM EST