NASA’s Artemis II mission successfully launched on Wednesday (April 1), marking humanity’s first lunar journey in more than 50 years and a major milestone in NASA’s plans for a sustainable lunar presence.
The 32-story Space Launch System (SLS) rocket lifted off from Launch Complex 39B at 6:35 p.m. EDT carrying the Orion spacecraft with NASA astronauts Reid Wiseman, Victor Glover, Christina Koch and Canadian Space Agency astronaut Jeremy Hansen on board.
A diverse crew
Artemis II features NASA’s most diverse lunar crew to date: the first woman, person of color and non-U.S. citizen to travel beyond Earth orbit. “It’s the story of humanity. Not black history, not women’s history, but it’s becoming human history,” astronaut Victor Glover said.
The mission, which lasts approximately 10 days, is an “out-and-back” trajectory around the moon without lunar orbit or a moonwalk that extends several thousand miles beyond the lunar surface before returning to Earth.
Pre-launch challenges overcome
Earlier in the day, NASA engineers successfully loaded over 700,000 gallons of fuel into the SLS rocket. The team resolved minor issues prior to launch, including communication with the rocket’s termination system and battery temperature alerts in the capsule’s launch abort system.
“These systems are now making their space debut on Artemis II, increasing the risk,” said NASA Chief Science Officer Lori Glaze.
Mission objectives and flight plan
During the first 25 hours, the crew will orbit Earth to test Orion’s systems before firing the main engine toward the Moon. Astronauts will also practice manual controls near the detached upper stage to ensure safe handling in the event of autopilot failure.
During a lunar flyby, the Moon will appear as large as a basketball held at arm’s length. The crew will observe features never before seen by humans, take pictures and witness a partial solar eclipse from their unique location.
“This mission marks the beginning of an era where everyone on Earth can look at the moon and think of it as a destination,” said astronaut Christina Koch.
Gateway to lunar exploration
Artemis II is the first crewed flight of NASA’s Artemis program, which paves the way for a sustainable base on the Moon and future missions to Mars. Unlike Apollo, Artemis emphasizes long-term exploration rather than short visits, with the goal of landing on the Moon near the lunar south pole in 2028.
NASA Administrator Jared Isaacman has accelerated Artemis III to 2027 for a lunar lander landing test, with Artemis IV set to be the first manned lunar landing under the new timeline.
Risk management and public forecasting
The mission carries inherent dangers. The SLS had repeated hydrogen fuel leaks during testing, and Artemis I experienced damage to its heat shield. Wednesday’s start nevertheless went smoothly, the historic start was witnessed by tens of thousands of spectators.
