However, the project has been dogged by delays and cost overruns."Stacking the first piece of the SLS rocket on the mobile launcher marks a major milestone for the Artemis Program," said Andrew Shroble, an integrated operations flow manager with Jacobs, a company working with NASA on the Artemis program, in a NASA news release."It shows the mission is truly taking shape and will soon head to the launch pad."NASA's Artemis I mission is expected to launch in 2021 with two test flights around the moon without astronauts.
Artemis II is set to launch in 2023 with astronauts on board in preparation to have Artemis III bring astronauts to the surface of the moon.
Artemis is named after the Greek goddess of the moon and is twin sister of Apollo.