No launch today. The teams have begun de-tanking the fuel from the Delta IV Heavy rocket. The launch vehicle is ready to launch. Weather is green right now. If that changes as the team proceeds ...

or 685 kg), needs a heavy-hitter launch vehicle. Enter the United Launch Alliance Delta IV Heavy. The mighty and majestic beast of the United Launch Alliance rocket family, the Delta IV Heavy ...

Both of the currently active ULA launch vehicles are beginning to phase out, to be replaced by Vulcan. Just five Delta IV Heavy launches remain on the manifest, all NRO launches procured under the ...