Artemis II Crew Passes Lunar Halfway Mark in Historic Deep-Space Voyage

Four astronauts are hurtling through deep space right now, closer to the Moon than any human being has been in more than five decades. NASA's Artemis II mission, which lifted off from Kennedy Space Center's Launch Pad 39B on April 1 at 6:35 p.m. EDT, has passed its halfway point on Flight Day 4, with the crew aboard the Orion spacecraft "Integrity" preparing for a lunar flyby scheduled for Monday, April 6.

The mission marks humanity's first crewed voyage beyond low Earth orbit since Apollo 17 returned from the Moon in December 1972 — a gap of 53 years. On April 2, the crew executed a critical six-minute translunar injection burn that sent Orion on its trajectory toward the Moon, a maneuver that committed the spacecraft and its four occupants to the quarter-million-mile journey ahead.

The crew is making history on multiple fronts. NASA astronaut Victor Glover is the first person of color to travel beyond low Earth orbit. Christina Koch is the first woman to make the voyage. And Canadian Space Agency astronaut Jeremy Hansen has become the first non-U.S. citizen to venture this far from Earth. Together with mission commander Reid Wiseman, they represent a crew that looks markedly different from the all-white, all-male, all-American teams of the Apollo era.

As of Saturday, the astronauts have been preparing the spacecraft cabin for the multi-hour flyby, during which they will photograph and observe the lunar surface at close range — including areas of the far side that no human eyes have ever witnessed in person. Koch reported from the spacecraft with unmistakable wonder: "We all had a collective expression of joy at that… We can see the Moon out of the docking hatch right now. It's a beautiful sight." Between observation preparations, the crew has been exercising, practicing medical response procedures, and testing emergency deep-space communications systems designed for missions far from Earth.

NASA Administrator Jared Isaacman, who himself flew to space as a private astronaut before taking the helm of the agency, captured the weight of the moment at launch. "Today's launch marks a defining moment for our nation and for all who believe in exploration," he said. The Space Launch System rocket that carried the crew skyward is the most powerful rocket NASA has ever flown with astronauts aboard, generating 8.8 million pounds of thrust at liftoff.

The approximately 10-day mission will conclude with a splashdown in the Pacific Ocean, but its significance extends far beyond a single flight. Artemis II serves as the critical precursor to Artemis III, which aims to land astronauts on the lunar surface for the first time since 1972. That mission, in turn, is designed to establish the operational foundation for a sustained human presence on the Moon — a future lunar base that NASA envisions as a stepping stone for eventual crewed missions to Mars.

For now, all eyes are on Monday's flyby. After more than half a century away, humans are about to see the Moon up close once again — and this time, the crew looking out the window finally reflects the full diversity of the civilization that sent them there.