SpaceX needs a bit more time to get everything ready to go, company representatives wrote in an update December 7. “We are finalizing the investigation into our Sept. 1 anomaly and are working to complete the final steps necessary to safely and reliably return to flight, now in early January with the launch of Iridium-1,” they wrote. SpaceX has traced the anomaly to the interaction between oxygen and a carbon-composite helium container in the rocket’s upper stage. The launch will take place from Vandenberg Air Force Base in California. The FAA hasn’t granted yet again SpaceX a permit for the launch or signed off on the company’s investigation of the explosion. The company’s effort to develop reusable rockets will continue.