Centaur (rocket stage) in the context of Viking program

A nose cone is the conically shaped forwardmost section of a rocket, guided missile or aircraft, designed to modulate oncoming airflow behaviors and minimize aerodynamic drag. Nose cones are also designed for submerged watercraft such as submarines, submersibles and torpedoes, and in high-speed land vehicles such as rocket cars and velomobiles.

Atlas V is an expendable launch system and the fifth major version in the Atlas launch vehicle family. It was developed by Lockheed Martin and has been operated by United Launch Alliance (ULA) since 2006. Primarily used to launch payloads for the United States Department of Defense, NASA, and commercial customers, Atlas V is the longest-serving active rocket in the United States.

Each Atlas V vehicle consists of two main stages. The first stage is powered by a single Russian-made RD-180 engine that burns kerosene and liquid oxygen. The Centaur upper stage uses one or two American-made Aerojet Rocketdyne RL10 engines that burn liquid hydrogen and liquid oxygen. Strap-on solid rocket boosters (SRBs) are used in several configurations. Originally equipped with AJ-60A SRBs, the vehicle switched to Graphite-Epoxy Motor (GEM 63) boosters beginning in November 2020, except for flights in the Boeing Starliner program. Standard payload fairings measure either 4.2 m (14 ft) or 5.4 m (18 ft) in diameter, with multiple available lengths.

Launch Complex 36 (LC-36) is a launch complex located at the Cape Canaveral Space Force Station in Florida. Located south of the Missile Row launch range, the complex originally consisted of two pads—designated LC-36A and LC-36B—to support the flights of Atlas launch vehicles equipped with a Centaur upper stage. From the 1960s to the 1980s, LC-36 was used by NASA and the United States Air Force to launch many payloads from the Atlas-Centaur and its derivatives, including the Pioneer, Surveyor, and Mariner probes. During the late 1980s, LC-36B was also used to launch the Atlas G, and General Dynamics (and later Lockheed Martin) modified the two pads to support the larger Atlas I, Atlas II, and Atlas III throughout the 1990s and early 2000s.

Following the Atlas program's relocation to Space Launch Complex 41 (SLC-41) in 2005, LC-36 stood vacant until Blue Origin acquired the lease in 2015 for use by their heavy-lift New Glenn rocket. The company made extensive modifications to the complex during this time, including demolishing 36A and 36B to build one large pad in place, as well as integrating the neighboring Launch Complex 11 (LC-11) into the facility. Following this large-scale renovation, the new era of LC-36 commenced with the maiden flight of New Glenn in January 2025.