Curiosity is a car-sized Mars rover designed to explore the Gale crater on Mars as part of NASA's Mars Science Laboratory (MSL) mission.Curiosity was launched from Cape Canaveral (CCAFS) on 26 November 2011, at 15:02:00 UTC and landed on Aeolis Palus inside Gale crater on Mars on 6 August 2012, 05:17:57 UTC. The Bradbury Landing site was less than 2.4 km (1.5 mi) from the center of the rover's touchdown target after a 560 million km (350 million mi) journey. The rover's goals include an investigation of the Martian climate and geology, assessment of whether the selected field site inside Gale has ever offered environmental conditions favorable for microbial life (including investigation of the role of water), and planetary habitability studies in preparation for human exploration. In December 2012, Curiosity's two-year mission was extended indefinitely, and on 5 August 2017, NASA celebrated the fifth anniversary of the Curiosity rover landing. The rover is still operational, and as of April 15, 2021, Curiosity has been active on Mars for 3089 sols (3174 total days; 8 years, 252 days) since its landing (see current status).