Q&A with Tim Ellis, CEO and co-founder of Relativity Space (members only)

The last Delta 4 launcher to fly in a single-core configuration rumbled into space Thursday morning from Cape Canaveral with a GPS navigation satellite, leaving United Launch Alliance with five more Delta 4-Heavy missions on contract through late 2023 before the Delta rocket family retires from service.

Take a look back on the liftoff of Boeing’s Starliner spacecraft on its first orbital test flight Dec. 20 aboard a United Launch Alliance Atlas 5 rocket with these photos showing the capsule streaking into space at dawn.

Members of the news media — reporters and photographers — witnessed the United Launch Alliance Delta 4-Heavy rocket lifted off from the ITL Causeway on Cape Canaveral Air Force Station, about 1.7 miles from the pad.