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.

The organization plans for liftoff to start on Wednesday, making it the first crewed rocket ship to return to the moon since 1972.

NASA'S ARTEMIS MISSIONS: EVERYTHING YOU NEED TO KNOW AHEAD OF THE HISTORIC MOON LAUNCH

The launch countdown includes "L Minus" and "T Minus" times. The "L minus" indicates how far away liftoff is in hours and minutes. The "T minus" time is a sequence of events built into the launch countdown.

Each event is planned precisely to make sure the teams have everything necessary before launch day.

Here are some of the key milestones that take place starting at L-16 hours:

CAUGHT ON CAMERA: BRIGHT FIREBALL REPORTED SHOOTING ACROSS THE SKY IN WASHINGTON AND OREGON

MEET THE ASTRONAUTS PREPARING FOR HUMANITY’S RETURN TO THE MOON ON THE ARTEMIS II MISSION

ARTEMIS II MISSION PHASES

ARTEMIS II ROCKET ON TRACK TO ROLL OUT TO LAUNCHPAD WITH HOPES OF SENDING HUMANS FURTHER INTO SPACE THAN EVER

HERE'S WHY NASA WILL MONITOR THE SUN FOR SOLAR ERUPTIONS DURING ARTEMIS II MISSION

HOW TO WATCH FOX WEATHER

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