All 4 astronauts are sealed inside the Orion spacecraft at Kennedy Space Center, with liftoff targeted for 6:24 p.m. EDT as NASA counts down to its most ambitious crewed mission in 50 years
The 4 crew members of NASA’s Artemis II mission are inside the Orion spacecraft and approaching liftoff after a launch day that has unfolded with the kind of precision and ceremony that only the most consequential missions in human spaceflight tend to produce. With the hatch sealed and final systems checks underway, NASA is within hours of sending astronauts farther from Earth than any humans have ever traveled — the first crewed deep-space mission in more than 50 years.
A morning of preparation and tradition
Launch day began with a wake-up call at 9:25 a.m. EDT for the mission’s 4 crew members: 1. Reid Wiseman, NASA astronaut and commander, 2. Victor Glover, NASA astronaut and pilot, 3. Christina Koch, NASA astronaut and mission specialist, and 4. Jeremy Hansen, mission specialist representing the Canadian Space Agency. From that moment forward, the day moved through a carefully choreographed sequence of suit-up procedures, weather briefings and countdown milestones that steadily brought the mission closer to its launch window.
Inside the Astronaut Crew Quarters at the Neil A. Armstrong Operations and Checkout Building, the crew suited up in their custom-fitted Orion Crew Survival System suits — bright orange pressure suits engineered with fire-resistant outer layers, touch-screen-compatible gloves, improved thermal management and helmets lighter and more communicative than anything worn during the shuttle era. Each suit was individually tailored, a departure from the one-size-fits-few approach of earlier NASA programs. Suit technicians conducted thorough leak checks before the crew was cleared to proceed.
Before departing the suit-up room, the crew observed one of spaceflight’s most enduring informal rituals — a card game played until the commander loses, a tradition believed to burn off bad luck ahead of launch. Wiseman eventually lost, and the mission was declared clear to continue.
The walk, the White Room and the hatch
The crew then made the walk to the pad that every NASA astronaut has completed since Apollo 7 in 1968, traveling the 20-minute route to Launch Complex 39B, where the Space Launch System rocket and Orion spacecraft stood ready. Upon arriving, the four crewmates signed the inside of the White Room — the climate-controlled area at the end of the crew access arm that has served as the final staging point before spacecraft entry since NASA‘s Gemini program.
Boarding began at approximately 2:31 p.m. EDT, with the crew conducting communication checks to confirm voice links with mission control before getting buckled in. The hatch closure process that followed is among the most technically exacting steps of any launch day. Engineers inspected seals, verified fasteners and confirmed airtight integrity across both the crew module hatch and the exterior launch abort system hatch — a process precise enough that a single strand of hair in the hatch door can create problems and that can take up to four hours to complete fully.
Counterbalance mechanism operations and pressure decay checks were subsequently performed to confirm that the hatch would maintain structural integrity throughout all phases of flight, including the deep-space environment the crew will encounter on their approximately 700,000-mile round trip.
What comes next
Weather conditions are tracking at 80% favorable for the 6:24 p.m. EDT launch window opening, with the primary variables being cumulus cloud coverage, flight-through precipitation rules and ground winds. The Artemis II mission is expected to last approximately 10 days, taking the crew on a free-return trajectory around the Moon before splashdown back on Earth. If the mission reaches its anticipated distance from our planet, it will break the record of approximately 248,655 miles set by Apollo 13 — a milestone that would make this crew the humans who have traveled farther from home than anyone in history.
Source: NASA.gov.