NASA’s towering Space Launch System (SLS) rocket and Orion spacecraft have begun their critical return to Launch Pad 39B at the Kennedy Space Center, signaling the final countdown for the first crewed lunar mission in over half a century. The massive 322-foot-tall assembly began its slow, four-mile journey from the Vehicle Assembly Building (VAB) early Friday morning, transported atop the Apollo-era crawler-transporter at a steady pace of less than one mile per hour. This “rollout” follows several weeks of intensive repairs within the VAB to address a persistent helium flow issue in the rocket’s upper stage and to replace several flight termination system batteries. With these technical hurdles now resolved, NASA engineers are targeting a primary launch window that opens on April 1, 2026, at 6:24 p.m. EDT. The mission, known as Artemis II, will carry a diverse crew of four—Commander Reid Wiseman, Pilot Victor Glover, Mission Specialist Christina Koch, and Canadian Space Agency astronaut Jeremy Hansen—on a high-stakes, 10-day journey that will take them further into deep space than any human has traveled before.
As the rocket reaches the pad, ground teams will move into a “marathon” of final preparations, which include connecting vital fuel, power, and data lines before a series of comprehensive systems checks. The crew has already entered a strict health quarantine in Houston to ensure they remain fit for the flight, and they are expected to arrive at the launch site approximately five days before liftoff. Unlike the uncrewed Artemis I mission, this flight serves as a definitive test of the Orion spacecraft’s life support and communication systems with humans on board. While the mission will not involve a lunar landing—a milestone now tentatively rescheduled for Artemis IV in 2028—it is a foundational step in establishing a long-term presence on the Moon. If weather and technical conditions remain favorable for the April 1 attempt, the world will witness a historic moment as humanity officially resumes its physical exploration of our closest celestial neighbor, paving the way for eventual missions to Mars.
