The 20 billion dollars Artemis the rocket, which consists of the 30-story Space Launch System (SLS) and the Orion capsule, is scheduled to lift off from Launch Pad 39B at NASA’s Kennedy Space Center in Florida sometime between 8:33 a.m. ET and 10:33 A.M. ET on Monday. After launch, the spacecraft’s boosters, which are capable of pushing 8.8 million pounds (3.9 million kilograms), will drop away and the Orion module will zip 40,000 miles (64,000 kilometers) beyond moon before returning to Earth on Oct. 10 “We will work with commercial and international partners and establish the first long-term presence on the moon,” NASA officials wrote in the Artemis mission website. “Then we’ll use what we learn on and around the moon to take the next giant leap: sending the first astronauts to Mars.” You can watch a live stream of the event via NASA TV here on Live Science. Coverage will also be available through NASA mobile app and official website of the organization. For those who want to catch the earliest coverage they can, the startup countdown will begin on Saturday, August 27, at 10:23 AM. EDT. The Artemis 1 test flight will allow NASA scientists to make important observations and modifications before Artemis 2 makes the same journey with a human crew in 2024. Then, in 2025, the Artemis 3 mission will see the first woman and the first person of color land on the moon These missions will be vital dress rehearsals for NASA’s biggest ambition for the Artemis spacecraft: getting humans to Mars. The SLS is NASA’s largest rocket since the Apollo program’s Saturn V rocket and consists of a liquid hydrogen and oxygen core booster with two smaller rocket boosters attached to its sides. For the Artemis 1 flight, the rocket will send the Orion capsule on a six-day, 69-mile (111 km) flight above the lunar surface, during which NASA engineers will collect data on the module’s trajectory and effects of low gravity on the three mannequins on board. Then, on its dramatic return through Earth’s atmosphere at 32 times the speed of sound, NASA will test the capsule’s heat shield. Extreme air friction and its parachute should safely slow the spacecraft to just 20 mph (32.2 km/h), after which it will fall off the coast of Baja California, Mexico, into the Pacific Ocean . Originally published in Live Science.