Q&A with Scott Bolton, principal investigator on NASA’s Juno mission

The last flight of United Launch Alliance’s Delta 4-Medium rocket lifted off Aug. 22 from Cape Canaveral Air Force Station in Florida, riding more than 1.2 million pounds of thrust from a hydrogen-fueled main engine and two strap-on solid rocket motors.

Critical operations were completed this morning by United Launch Alliance at Cape Canaveral to prepare two rockets for upcoming flights into space.

After a successful mission that pushed the limits of small satellite technology, ground controllers have lost contact with two briefcase-sized CubeSats beyond Mars, NASA said Tuesday.