Video: Mars Pathfinder pre-launch preparations

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.

Here’s a look by the numbers of the previous Delta 4 flight history and the remaining flights of the rocket named Delta.

The Mobile Service Tower at LC-17B is rolled away from the Delta 2 rocket that launched NASA’s Mars Pathfinder mission on its way to the red planet on December 4, 1996. This video includes footage shot inside the blockhouse at the launch pad.