NASA is preparing to launch the Artemis II mission, marking the first crewed voyage to the moon since the Apollo program ended in 1972. This mission represents a major milestone in space exploration, as it will test critical systems and gather data necessary for future lunar landings. Scheduled to lift off on April 1, Artemis II will carry four astronauts on a 10-day journey that includes a flyby of the moon but will not involve landing on its surface. That historic step is planned for Artemis IV, expected in early 2028.
The Artemis II mission has been in development for over eight years and builds upon the success of Artemis I, an uncrewed test flight that orbited the moon in 2022. One of the main goals of Artemis II is to further validate NASA's new Space Launch System (SLS) rocket and the Orion spacecraft, both vital components of the Artemis program. The SLS, a super heavy-lift rocket producing more than 8.8 million pounds of thrust, will launch Orion and its crew from Launch Complex 39B at Kennedy Space Center in Florida.
The mission's crew consists of four astronauts: commander Reid Wiseman, pilot Victor Glover, and mission specialists Christina Koch and Jeremy Hansen. Wiseman, Glover, and Koch are American astronauts, while Hansen is Canadian, marking the first time a Canadian will travel to the moon. Their journey will begin with a two-hour launch window targeted to open at 6:24 p.m. Eastern Time on April 1, with additional launch opportunities extending through April 6 and a backup date on April 30. NASA aims for an evening liftoff to make the event accessible for viewers during or after dinner hours.
Before the launch, NASA has been conducting rigorous tests on both the SLS rocket and the Orion spacecraft. After a wet dress rehearsal - a fueling test that simulates launch conditions - NASA adjusted the original launch timeline, moving it from a February to March window to the current April schedule. The Orion spacecraft also underwent enhancements to its heat shield to address damage sustained during the Artemis I mission, ensuring it can withstand the intense heat of re-entry at speeds generating temperatures up to 3,000 degrees Fahrenheit.
Once launched, the spacecraft will ascend rapidly, shedding its rocket boosters and other launch-specific hardware within the first few minutes. Approximately eight minutes after liftoff, the Orion capsule will separate from the lower rocket stage, which will then fall into the Atlantic Ocean and sink. The spacecraft will then enter a preliminary orbit around Earth, maintaining a trajectory that allows for a safe abort and return if necessary.
After orbiting Earth for roughly a day, the Orion crew will activate manual controls to test onboard systems such as life support and communications. When all systems are confirmed to be functioning properly, the upper stage of the rocket will perform a translunar injection burn, propelling Orion toward the moon. The spacecraft will then embark on a multi-day transit, covering more than 225,000 miles to reach lunar orbit - a distance vastly greater than the 250 miles between Earth and the International Space Station.
During this transit, the crew will conduct various tests, practice procedures, and operate mission technologies to prepare for the lunar flyby. On the sixth day, Artemis II will enter lunar orbit and fly around the far side of the moon, a region rarely seen directly by humans. Depending on the exact timing of the mission, the crew may break the record for the farthest distance humans have traveled from Earth, currently held by the Apollo 13 mission at 248,655 miles.
While flying behind the moon, the crew is expected to experience a temporary loss of communication with Earth. During this time, they will capture photographs of the moon's far side before reestablishing contact and beginning the return journey. The Orion spacecraft will use gravitational forces from the moon and Earth to slingshot back toward our planet.
The final phase of the mission will see the Orion capsule re-enter Earth's atmosphere at high velocity. The spacecraft's upgraded heat shield will be put to the test, protecting the crew from extreme temperatures. Upon successful re-entry, parachutes will deploy to slow the descent, and the capsule will splash down in the Pacific Ocean. The U.S. Navy will recover the astronauts approximately two hours after splashdown.
Artemis II is a critical step in NASA's broader plan to return humans to the lunar surface. The mission will provide essential data and operational experience that will inform the subsequent Artemis III and Artemis IV missions. Artemis III, targeted for 2027, will include tests such as docking with a lunar lander in Earth orbit, while Artemis IV will achieve the first crewed moon landing since Apollo 17 in 1972.
The lunar lander for upcoming Artemis missions is being developed by SpaceX, while Houston-based Axiom Space is designing the new space suits astronauts will wear on the lunar surface. Together, these efforts represent a collaborative push to establish sustainable human exploration of the moon and lay the groundwork for future missions to Mars and beyond.
NASA plans to stream the Artemis II launch live across multiple platforms, including its YouTube channel, the NASA Plus streaming app, and social media pages on Facebook, X, and Twitch. A new partnership with Netflix, starting in 2025, may also make the launch accessible via that platform. This wide coverage aims to engage the public and showcase the excitement and significance of this landmark mission.
In summary, Artemis II is poised to be a historic and thrilling mission that will reignite human presence beyond Earth orbit. By flying astronauts around the moon, testing critical technologies, and gathering crucial data, NASA is preparing for a new era of lunar exploration. The success of Artemis II will set the stage for future missions that will ultimately return humans to the moon's surface and expand humanity's reach into the solar system.