Launch preparations are underway for the Artemis II mission, NASA’s highly anticipated lunar flyby featuring a crew of four astronauts. This mission marks the first time humans will travel to the moon since 1972.

Mission Preparations at Kennedy Space Center

On Tuesday, March 31, 2026, photographers positioned remote cameras near the Artemis II moon rocket on Launch Pad 39-B at the Kennedy Space Center in Cape Canaveral, Florida. The 32-story Space Launch System rocket was fueled with over 700,000 gallons of fuel early Wednesday, preparing for a planned launch window opening at 6:24 p.m. EDT.

Meet the Artemis II Crew

The Artemis II crew consists of Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen. They will journey thousands of miles beyond the moon, perform a U-turn, and return to Earth in a mission lasting less than 10 days. This flight is a crucial step towards NASA’s long-term goal of establishing a permanent moon base.

Astronauts Enter Orion Capsule

The four astronauts have entered the Orion capsule and are now in place for the historic flight. After arriving at the launch pad, they ascended via elevator and signed their names in the “white room,” the staging area for boarding. They then donned their helmets, made final suit adjustments, and entered the capsule, where they will remain for the duration of the mission.

Understanding NASA Terminology

NASA utilizes specific terminology during launch procedures. Key terms include:

  • LH2: Liquid hydrogen
  • LOX: Liquid oxygen
  • Go/no-go: Status check for proceeding
  • Nominal: Everything proceeding as planned
  • LAS: Launch abort system
  • Hold: A pause in the countdown
  • Scrub: Launch attempt cancellation

Launch Day Details

NASA’s launch team has completed fueling the Space Launch System rocket. Jared Isaacman, NASA chief, even had pizza delivered to the team as they approached the launch window. The Artemis II mission will test the new orange spacesuits designed for launch, reentry, and emergency situations, capable of sustaining astronauts for up to six days.

Safety Features and Mission Trajectory

The Orion capsule is equipped with a Launch Abort System (LAS), designed to carry the crew to safety in the event of an emergency during launch. The mission will utilize a gravity-assisted trajectory, leveraging the Earth and moon’s gravity for an efficient return.

Crew Reflections and Historical Context

Jeremy Hansen, the Canadian astronaut, reflected on the significance of the mission, acknowledging the inherent risks while reassuring his family. Christina Koch, holding the record for the longest single spaceflight by a woman (328 days), expressed confidence in the shorter duration of this mission. Victor Glover emphasized the importance of his presence as a Black astronaut, viewing it as “a force for good.” Reid Wiseman, the mission commander, described the opportunity to lead this historic flight as one he “cannot say no to.”

The Artemis program, named after the Greek goddess associated with the moon, builds upon the legacy of the Apollo program. However, NASA emphasizes that Artemis is a distinct mission with new objectives, including addressing the current space landscape with China as a competitor.

Weather and Countdown Status

While winds are increasing and rain is expected, NASA reports no lightning threat and an 80% chance of favorable weather conditions for launch. The countdown is proceeding, with L-minus tracking the overall time to liftoff and T-minus representing the final 10-minute period of intense activity.