NASA is preparing for the Artemis II mission, the first crewed flight of the Space Launch System (SLS) rocket and Orion spacecraft, with a planned launch around the moon on April 1, marking humanity's return to lunar orbit after over 50 years. The nine-day mission will carry astronauts Reid Wiseman, Christina Koch, Victor Glover, and Canadian Jeremy Hansen on a free return trajectory around the moon, aiming to test critical systems despite previous technical delays involving helium flow and hydrogen leaks. Artemis II is a key milestone in NASA’s broader Artemis program, which seeks to establish a sustainable human presence on the moon and pave the way for future lunar landings and Mars exploration.