But the agency also has a two-hour window in which to fly the mission, with weather forecasts improving to an 80% chance of good conditions by its end. NASA currently has a 60% chance of good weather at launch time for Artemis 1. A weather delay during Monday's launch attempt stalled fueling for nearly an hour. EDT (0945 GMT), if Mother Nature cooperates. NASA will begin fueling the SLS rocket with its 730,000 gallons (2.8 million liters) of super-cold propellant at about 5:45 a.m. Space Launch System: NASA's megarocket for Artemis moon missions Ready for flightīut first, the rocket has to lift off. 10 wild facts about the Artemis 1 moon mission Weather looks good for Artemis 1 moon rocket's 2nd launch try, NASA says Related: NASA's Artemis program of moon exploration It should splash down in the Pacific Ocean off the coast of California on Oct. Orion will make a long, wide orbit of the moon during its 37-day flight on Artemis 1. The crewed lunar landing would follow on the Artemis 3 mission a year or so later. "With Artemis 1, we are buying down the risk on the crewed flight, which is the next mission." That coming crewed flight, called Artemis 2, is slated to launch in 2024 if all goes well with Artemis 1, NASA has said.
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"Artemis 1 is the first test flight in a series of increasingly complex missions," Sarafin said. Some will study the moon while others are designed to test technologies for deep-space exploration. There are 10 small cubesats on Artemis 1 as well. Orion is also carrying a host of biological experiments to study the impact of deep-space radiation on astronauts, including three mannequins equipped with hundreds of sensors. NASA and ESA want to make sure Orion can support astronauts during moon trips, and then survive the fiery plunge back to Earth at speeds of up to 25,000 mph (40,000 kph) and temperatures of up to 5,000 degrees Fahrenheit (2,800 degrees Celsius). Also critical is the Orion spacecraft, which is built by Lockheed Martin with a service module from the European Space Agency. The primary goals of Artemis 1 are to show the SLS rocket can launch Orion off Earth. "It's not going to fly until it's ready." "This is a brand-new rocket," NASA Administrator Bill Nelson said after the first launch attempt. It is also a test flight, one designed to push the Orion spacecraft to its limits and demonstrate, once and for all, that NASA's mighty new rocket and spaceship are ready to carry astronauts. The Artemis 1 mission is years behind schedule (it was supposed to fly in 2017) and billions over budget ( NASA spent $40 billion on Artemis through 2020, according to a recent NASA Inspector General report). SLS and Orion are the foundation of NASA's Artemis program, which aims to return astronauts to the moon by 2025. It will fly on the 32-story SLS megarocket, NASA's most powerful rocket ever, and the Orion space capsule, a next-generation spacecraft to fly astronauts in deep space.
Artemis 1 is NASA's first trip to the moon with a crew-capable spacecraft since the years of Apollo.
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