The wait will continue to see the powerful Delta IV Heavy rocket blast off on its retirement flight. With minutes to go until the planned 2:45 p.m. target liftoff Thursday for the Delta IV Heavy ...

For comparison, United Launch Alliance's Delta IV Heavy-- the most powerful rocket launching now -- can bring 62,540 pounds to LEO and 30,440 pounds to GTO. Once the Falcon Heavy flies ...

TASS/. A Delta IV Heavy rocket has successfully put into orbit a secret payload for the US National Reconnaissance Office (NRO), the United Launch Alliance (ULA) said on its website on Saturday.