Hitting The Atmosphere

Since it did the deorbit burn about half an hour ago, Endeavour should be starting to test its tiles right about now. Hoping for the best.

[Update a few minutes later]

Apparently they came through entry all right. Landing in a few minutes. It will be interesting to see the extent of the belly damage once they reach the ground.

[Update a few minutes prior to landing]

I just heard the double sonic boom. It rattled the house. I’ve never heard one in Florida before. The last time I did was in California, on an Edwards landing. I guess they were approaching the Cape from the south.

[Update]

The vehicle just rolled (apparently safely) to a stop.

[Post-flight update]

Interesting unintended consequences, if it turns out to be the case:

While the resulting damage was later found to pose no risk to the safe return of the orbiter or its seven-astronaut crew, NASA has found similar foam shedding events on its last few shuttle flights. The damage from any such foam loss to an orbiter’s heat shield is not believed to be catastrophic, like that which led to the 2003 Columbia accident, but engineers are analyzing it just to be sure, Hale said.

The increased frequency has prompted speculation that an extra hour added to launch countdowns – to allow inspections teams to scan shuttle fuel tanks for ice build-up – may actually contribute to ice formation that ultimately cracks or looses foam debris.

There are no risk-free choices.