PAL ramp decision day

Is the shuttle external tank safe to fly without the PAL ramp foam? That's the question before shuttle managers meeting today in Houston for a key design review of changes made since a hunk of foam came off during the first return to flight last July. The shuttles haven't flown since. A second RTF mission is set for July 1, but hinges in part on today's decision. We'll have reporters on scene at Johnson Space Center when the decision comes down later today. See our report on today's design review here, and check back for updates.