The Delta 2's RS-27A main engine burst to life at 6:02 a.m. PDT (GMT-7; 9:02 a.m. EDT) following instants later by ignition of four strap-on solid-fuel boosters. The slender rocket quickly climbed ...

NASA's Dawn space probe powered by exotic ion engines was launched to orbit ... military uses were lofted in separate launches. The Delta 2 rocket marked its 75th consecutive successful launch ...

The McDonnell Douglas Delta 2 rocket has long been a mainstay of ... hydrogen first stage engine for Delta 4 is the first big rocket engine developed in this country in 25 years.

The final flight of United Launch Alliance's Delta ... 68A engines made by Aerojet Rocketdyne flashed to life in the final seconds before launch and throttled up to produce more than 2 million ...

A few seconds after the engines start, 12 hold-down bolts will blow to release the triple-core rocket from its restraints. More than 2 million pounds of thrust will power the Delta IV Heavy off ...

Orbital Sciences Corp. considered taking over Delta 2 rocket operations ... the first stage of the N-1 Moon rocket it ultimately scrapped. Aerojet has 37 such engines in inventory, a purchase ...

For the third day in a row crews are poised at Vandenberg Air Force Base to launch a Delta 2 rocket and its Italian satellite tonight.

At 2:47 p.m. EDT Thursday ... The Delta IV Heavy rocket has three Delta IV core stages together. According to the ULA website, each rocket engine produces up to 702,000 lbs.

At 2:47 p.m. EDT Thursday ... The Delta IV Heavy rocket has three Delta IV core stages together. According to the ULA website, each rocket engine produces up to 702,000 lbs.