Artemis 2 crew’s 10-day circumnavigation of Earth and Moon – Timeline for NASA’s historic mission to the Moon
NASA’s Artemis 2 mission ended with a delicate landing in the Pacific Ocean, capping a nearly 10-day journey that took four astronauts farther from Earth than any human before.
The Orion capsule “Integrity” parachuted into calm waters off California, ensuring the safety of all crew members.The mission traveled a total of 694,392 miles (more than 1.1 million km), and was the first manned voyage to the lunar vicinity since the Apollo era and a crucial step toward future lunar landings.
Here is the timeline for the Artemis II mission:
April 1-2: Launch, orbit, and critical system validation
The mission lifted off on April 1 from Kennedy Space Center aboard NASA’s Space Launch System. After separation, Orion entered Earth orbit, where the astronauts performed extensive checks on its life support, propulsion, avionics, and solar arrays systems.This phase served as a “turbulence cruise,” ensuring the spacecraft could safely support human life before committing to deep space travel. Engineers also checked the launch abort system and on-board batteries, which are essential for emergency scenarios.
April 2-5: Lunar injection and deep space transit
On April 2, Orion performed a powerful burn across the Moon, accelerating to nearly 22,000 miles per hour and setting its course toward the Moon. Over the next three days, the crew traveled about 240,000 miles, crossing the Van Allen radiation belts and entering deep space.
Astronauts monitored the navigation systems, radiation protection, and autonomy of spacecraft while conducting experiments on the effects of microgravity. The spacecraft operated largely on automated systems, with minimal manual intervention required.
April 5-6: Closest approach and record breaking lunar flyby
Around April 5, Artemis II reached the Moon, performing a close flyby that brought it within a few thousand miles of the Moon’s surface. The crew took high-resolution images and studied the lunar terrain, including target areas for future missions.Using the Moon’s gravity, Orion performed a slingshot maneuver to begin the return journey. During this phase, the mission set a new record, traveling 252,756 miles from Earth, surpassing the record set by Apollo 13.The flyby also marks a historic milestone, as the crew includes the first woman, the first black astronaut, and the first non-American to participate in a lunar mission.
April 6-10: Return trip and preparations for return
The return trip took another three to four days, during which the crew conducted final system checks and scientific observations. Engineers closely monitored the spacecraft’s heat shield performance data in preparation for return, considered the most critical phase of the mission.Orion’s trajectory was carefully modified to minimize thermal stress, following lessons learned from the Artemis I test flight.
April 11: High-risk return and “perfect bull target” landing.
On April 11, Orion reentered Earth’s atmosphere at 32 times the speed of sound. Temperatures reached nearly 5,000 degrees Fahrenheit as the capsule experienced intense friction, briefly losing contact for more than six minutes due to the ionized plasma, Reuters reported.Contact was restored moments before parachutes were deployed, slowing the capsule’s speed to about 25 km/h before the precise landing. NASA commentators described it as a “perfect bullseye landing.”Rescue teams from NASA and the US Navy secured the capsule within two hours. The astronauts were transported via helicopter to the USS John P. Murtha for medical examinations before their return to Houston.The mission’s success confirms key technologies needed for future Artemis missions, including a planned lunar landing, and advances NASA’s broader goal of sending humans to Mars.
