NASA fuels moon rocket for liftoff on 1st test flight The NASA moon rocket stands ready at sunrise on Pad 39B before the Artemis 1 mission to orbit the moon at the Kennedy Space Center, Monday, Aug. 29, 2022, in Cape Canaveral, Fla. (Joel Kowsky/NASA via AP)
NASA's Space Launch System (SLS) rocket with the Orion spacecraft aboard is seen atop the mobile launcher at Launch Pad 39B, Monday, Aug. 29, 2022, as the Artemis I launch teams load more than 700,000 gallons of cryogenic propellants including liquid hydrogen and liquid oxygen as the launch countdown progresses at NASA's Kennedy Space Center in Florida. (Joel Kowsky/NASA via AP)
Vice President Kamala Harris and Second Gentleman Doug Emhoff exit their aircraft after landing at the Kennedy Space Center, ahead of the planned launch for Artemis 1, Monday, Aug. 29, 2022, in Cape Canaveral, Fla. (AP Photo/Bill Ingalls)
Spectators sleep next to the Max Brewer Bridge while waiting to view the launch on Pad 39B for the Artemis I mission to orbit the moon at the Kennedy Space Center, Monday, Aug. 29, 2022, in Titusville , Fla. The launch was scrubbed. (AP Photo/Phelan M. Ebenhack)
Spectators leave the Max Brewer Bridge after a scrub of the launch of the Artemis I mission to orbit the moon at the Kennedy Space Center, Monday, Aug. 29, 2022, in Titusville, Fla. (AP Photo/Phelan M. Ebenhack)
A vendor sells souvenir flags to spectators on the Max Brewer Bridge waiting to view the launch of the Artemis I mission to orbit the moon at the Kennedy Space Center, Monday, Aug. 29, 2022, in Titusville, Fla. The launch was scrubbed. (AP Photo/Phelan M. Ebenhack)
The NASA moon rocket stands on Pad 39B after today's launch for the Artemis 1 mission to orbit the Moon was scrubbed at the Kennedy Space Center, Monday, Aug. 29, 2022, in Cape Canaveral, Fla. (AP Photo/John Raoux)
A NASA helicopter flies past the agency's Space Launch System (SLS) rocket with the Orion spacecraft atop the mobile launcher at Launch Pad 39B, Monday, Aug. 29, 2022, in Cape Canaveral, Fla. The launch was scrubbed. (Joel Kowsky/NASA via AP)
NASA's new moon rocket sits on Launch Pad 39-B minutes after the launch was scrubbed, Monday, Aug. 29, 2022, in Cape Canaveral, Fla. (AP Photo/Chris O'Meara)
Michael Sarafin, Artemis Mission Manager answers questions during a new conference about the status of the NASA moon rocket for the Artemis 1 mission to orbit the Moon at the Kennedy Space Center, Monday, Aug. 29, 2022, in Cape Canaveral, Fla. (AP Photo/John Raoux)
NASA Administrator Bill Nelson listens to a question from reporters during a news conference about the status of the NASA moon rocket for the Artemis 1 mission to orbit the Moon at the Kennedy Space Center, Monday, Aug. 29, 2022, in Cape Canaveral, Fla. (AP Photo/John Raoux)
Michael Sarafin, center, Artemis Mission Manager, answers questions during a new conference about the status of the NASA moon rocket for the Artemis 1 mission to orbit the Moon as NASA Administrator Bill Nelson, left, and James Free, right, associate administrator for the Exploration Systems Development listen at the Kennedy Space Center, Monday, Aug. 29, 2022, in Cape Canaveral, Fla. (AP Photo/John Raoux)
NASA's new moon rocket sits on Launch Pad 39-B hours before liftoff Monday, Aug. 29, 2022, in Cape Canaveral, Fla. This is scheduled to be the first flight of NASA's 21st-century moon-exploration program, named Artemis after Apollo's mythological twin sister. (AP Photo/Chris O'Meara)
The NASA moon rocket stands ready at sunrise on Pad 39B before the Artemis 1 mission to orbit the moon at the Kennedy Space Center, Monday, Aug. 29, 2022, in Cape Canaveral, Fla. (AP Photo/Brynn Anderson)
Spectators wait in a area near the Saturn V visitor center several hours before the scheduled NASA moon rocket launch for the Artemis 1 mission to orbit the Moon at the Kennedy Space Center, Monday, Aug. 29, 2022, in Cape Canaveral, Fla. (AP Photo/Brynn Anderson)
Spectators wait in a area near the Saturn V visitor center several hours before the scheduled NASA moon rocket launch for the Artemis 1 mission to orbit the Moon at the Kennedy Space Center, Monday, Aug. 29, 2022, in Cape Canaveral, Fla. (AP Photo/Brynn Anderson)
Spectators sit in a bleacher near the Saturn V visitor center several hours before the scheduled NASA moon rocket launch for the Artemis 1 mission to orbit the Moon at the Kennedy Space Center, Monday, Aug. 29, 2022, in Cape Canaveral, Fla. (AP Photo/Brynn Anderson)
NASA's new moon rocket sits on Launch Pad 39-B hours before liftoff Monday, Aug. 29, 2022, in Cape Canaveral, Fla. This is scheduled to be the first flight of NASA's 21st-century moon-exploration program, named Artemis after Apollo's mythological twin sister. (AP Photo/Chris O'Meara)
Spectators wait in an area near the Saturn V visitor center several hours before the scheduled NASA moon rocket launch for the Artemis 1 mission to orbit the Moon at the Kennedy Space Center, Monday, Aug. 29, 2022, in Cape Canaveral, Fla. (AP Photo/Brynn Anderson)
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The NASA moon rocket stands ready at sunrise on Pad 39B before the Artemis 1 mission to orbit the moon at the Kennedy Space Center, Monday, Aug. 29, 2022, in Cape Canaveral, Fla. (Joel Kowsky/NASA via AP)