A United Launch Alliance (ULA) Atlas V rocket carrying the Mars 2020 mission with the Perseverance rover for NASA, lifted off from Space Launch Complex-41 on July 30 at 7:50 a.m. EDT.
ULA and its heritage rockets have launched every U.S. led mission to Mars, beginning in the 1960s. The launch of this mission marks ULA’s 20th trip to the red planet and the 85th successful launch of an Atlas V rocket. The Atlas V has previously launched four missions to Mars, including the Mars Reconnaissance Orbiter in 2005, the Curiosity rover in 2011, the MAVEN orbiter in 2013 and the InSight lander in 2018.
“Thank you to the ULA team and our NASA mission partners for diligently working through an ever-changing environment to successfully launch this historic mission,” said Gary Wentz, ULA vice president of Government and Commercial Programs. “The complexity of the Mars 2020 mission proves ULA’s acceptance of the most challenging launch requirements and we work together with NASA to achieve them. Our guidance accuracy for interplanetary missions is unmatched, and the Atlas V is the only vehicle certified to launch payloads with nuclear power sources.”
One of the most powerful rockets in the Atlas V fleet, the 541 configuration, with four solid rocket boosters, provides optimum performance to precisely deliver a range of mission types. In addition to three national security and two weather satellites, an
Atlas V 541 rocket launched NASA’s Curiosity rover on its 10-month, 354 million-mile journey to the surface of Mars.
This Atlas V 541 configuration vehicle included a 5-meter payload fairing (PLF) and stood at 197 ft. tall. The Atlas booster for this mission was powered by the RD AMROSS RD-180 engine. Aerojet Rocketdyne provided the four AJ-60A SRBs and RL10C-1 engine for the Centaur upper stage.
NASA's Launch Services Program (LSP) at the agency's Kennedy Space Center in Florida selected United Launch Alliance’s (ULA’s) proven Atlas V vehicle for this mission and is responsible for management and oversight of the Atlas V launch services. LSP selected this rocket because it has the right liftoff capability for the "heavy weight" requirements for NASA’s Mars 2020 Perseverance rover launch.
To date ULA has launched 140 times with 100 percent mission success.
With more than a century of combined heritage, ULA is the world’s most experienced and reliable launch service provider. ULA has successfully launched more than 135 missions to orbit that provide Earth observation capabilities, enable global communications, unlock the mysteries of our solar system, and support life-saving technology.