SpaceX Falcon 9 Rocket Breaks Up in Flight

UPDATE 4: Press conference now no earlier than 12:50 pm EDT.

UPDATE 3: Elon Musk has Tweeted that there was an overpressure event in the second stage liquid oxygen tank. More details forthcoming at press conference.

UPDATE 2: NASA has wrapped up its live coverage. Press conference scheduled for not earlier than 12:30 pm EDT. You can watch live at www.nasa.gov.

UPDATE 1: SpaceX has issued the following statement on Twitter: “The vehicle experienced an anomaly on ascent. Team is investigating. Updates to come.”

Elon Musk said on Twitter: “Falcon 9 experienced a problem shortly before first stage shutdown. Will provide more info as soon as we review the data.”

The last data from the rocket came at 2:19.

SpaceX’s Falcon 9 rocket broke up in flight this morning after launch from Cape Canaveral. The launch failure destroyed a Dragon cargo ship headed for the International Space Station.

It’s not clear exactly what happened at this point. The vehicle appeared to break up near the end of the first stage burn. It’s not clear whether the vehicle broke up as a result of a failure, or whether the flight was terminated by the launch range officer on the ground after it started to go off course.

This is the third failure of a supply ship to the International Space Station in eight months. This could place the crew in a precarious situation in terms of supplies.

This was the 19th launch of the Falcon 9. All previously launches had successfully orbited primary payloads. On one launch, a secondary payload was placed in the wrong orbit.

This is a developing story. Check back for more details and follow my reports at www.twitter.com/spacecom.