NASA Artemis II countdown: Here's what happens from now until launch

NASA teams across the country have begun the launch countdown for the Artemis II mission around the moon. Here are some of the key milestones that takes place started at L-16 hours.
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What happens during NASA’s Artemis II countdown? A step by step look at the launch process

Explore the detailed sequence of NASA’s Artemis II launch countdown, including planned holds, tanking procedures, and terminal countdown events before liftoff.

NASA begins the countdown for humanity's first launch to the moon in 53 years

NASA began the countdown Monday for humanity’s first launch to the moon in 53 years. The 32-story Space Launch System rocket is poised to blast off Wednesday evening with four astronauts. After a day in orbit around Earth,

Artemis II launch in Florida, countdown clock. When, where to see liftoff

NASA Artemis II two-hour launch window opens at 6:24 pm ET Wednesday, April 1, 2026. Best places near Kennedy Space Center in Florida to watch liftoff
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Artemis II moon rocket refueled in practice countdown setting stage for historic flight

NASA cleared engineers to load more than 750,000 gallons of supercold propellants into the agency’s huge Space Launch System rocket Thursday in a second “wet dress rehearsal” countdown to verify leak repairs and clear the way for a flight to the ...

NASA starts countdown clock for Artemis II launch

NASA officials on Monday started the two-day countdown to the Artemis II mission launch, which will send a crew of four around the moon.