First (as he told me last week he planned to do), Charles Miller rolled out his proposal for a return to the moon, using commercial launchers, at the National Press Club. I haven’t read it yet, but I’m sure it will contain a lot of good info to inform my own project.
Second, Elon had a press telecon to present preliminary findings on the accident. It was apparently a broken strut on the helium tank in the LOX tank, which failed at 20% of the rated strength (it seems to have failed in tension). Return to flight no sooner than September, depending on customer willingness to fly, redesign of strut (and new supplier). Falcon Heavy first flight delayed until Q2 next year. He admitted that it may have occurred due to “complacency” after long string of successful flights. Most current employees had never seen a failure.
[Update a few minutes later]
Alan Boyle (who seems to have retired from NBC, congratulations) has the story at Geekwire.
[Tuesday-morning update]
Here’s a description of what went wrong from the Space Access Society.
[Update a few minutes later]
Here’s Stephen Clark’s takehttp://spaceflightnow.com/2015/07/20/support-strut-probable-cause-of-falcon-9-failure/ over at SpaceflightNow.