SpaceX official statement: https://twitter.com/SpaceX/status/502976401729798144

KWTX has some videos, too: http://www.kwtx.com/home/headlines/Rocket-Explodes-at-Space-...

The explosion supposedly occurred at their test facility which probably makes this a not-so-big deal. Sure you don't want to damage (or blow up) test equipment but if you're going to do it, the test facility seems like the best place.

I wonder if Elon will be the one who responds and/or how detailed will the explanation be...?

One thing you have to admire about SpaceX is how detailed / technical they are with their reports, unlike most other companies who just try to move past an incident.

Agreed. One of the other interesting / admirable things about Elon as a CEO is his ability to talk in such detail about his products. I think this is probably more normal for a founder than a CEO, but it sets a high bar for CEOs (and other executives) for them to be able to talk about the very details of the products they are building. Unfortunately I've never had a CEO like this.

This is only a test. Repeat this is only a test.

they testing failure conditions?