Rather than create a bunch of memorials (I'm sure that will happen) they could honor the memories of those who died by building a much better, safer fleet of spacecraft. When you think about how far back the Shuttles actually go and when they were designed, and look at how far we've come today, we could do much better (perhaps split up manned vehicles from cargo vehicles as somebody said) They could even name one for each of the astronauts. I hope that this isn't the end of our space fleet, and I'm sure those astronauts would not want it ended in their names and memories. This should be turned towards a positive end.