Video: Tower rollback prior to launch of Mars Pathfinder atop a Delta 2

A Delta 2 rocket boosted by nine strap-on motors and two liquid-fueled stages will launch NOAA’s JPSS 1 weather satellite into a 511-mile-high (822-kilometer) orbit following liftoff from Vandenberg Air Force Base, California.

Flying for the 155th and final time, a United Launch Alliance Delta 2 rocket took off from California on Sept. 15 with NASA’s ICESat 2 satellite.

Follow the key events of the Falcon 9 rocket’s ascent to orbit 60 satellites for SpaceX’s Starlink broadband network.