Blue Origin has called off the debut launch of its massive new rocket because of technical trouble. The 320-foot rocket was supposed to blast off before dawn Monday with a prototype satellite from Cape Canaveral, Florida. But launch controllers had to deal with an unspecified rocket issue in the final minutes of the countdown and ran out of time. Founded by Amazon’s Jeff Bezos, Blue Origin did not immediately set a new launch date. Bezos took part in Monday’s countdown from Mission Control. New Glenn is named after the first American to orbit Earth, John Glenn.