During their lunar flyby, Wiseman, Koch, Glover and Hansen will conduct observations of the moon and capture photos for about seven hours, starting at 2:45 p.m. ET.
Here’s a rundown of key moments:
1:56 p.m.: The Artemis II astronauts are expected to surpass the distance record set by the Apollo 13 crew in 1970 for the farthest humans have ever traveled from Earth.
2:45 p.m.: Lunar observations begin.
6:44 p.m.: Mission control expects to temporarily lose communication with the crew as the Orion spacecraft passes behind the moon.
6:45 p.m.: During “Earthset,” Earth will glide behind the moon from Orion’s perspective.
7:02 p.m.: Orion will reach its closest approach to the moon, flying about 4,070 miles above the surface.
7:07 p.m.: The astronauts will reach their maximum distance from Earth.
7:25 p.m.: The crew will experience “Earthrise,” when Earth comes back into view on the opposite edge of the moon.
7:25 p.m.: Mission controllers should reacquire communication with the astronauts.
8:35-9:32 p.m.: The Artemis II astronauts will experience a solar eclipse from space. During the eclipse, the sun will pass behind the moon from the crew’s perspective.
9:20 p.m.: Lunar observations conclude.