The two mobile launcher platforms (MLPs) are seen at the MSS park site at NASA’s Kennedy Space Center in Florida on Jan. 4, 2021. One MLP is undergoing crawlerway conditioning – a several month-long project to ensure the path the rocket takes from the VAB to the launch pad is strong enough to support the weight for the upcoming Artemis I launch. The other MLP used during the shuttle program is in the process of being demolished.

The two mobile launcher platforms (MLPs) are seen at the MSS park site at NASA’s Kennedy Space Center in Florida on Jan. 4, 2021. One MLP is undergoing crawlerway conditioning – a several month-long project to ensure the path the rocket takes from the VAB to the launch pad is strong enough to support the weight for the upcoming Artemis I launch. The other MLP used during the shuttle program is in the process of being demolished.

The two mobile launcher platforms (MLPs) are seen at the MSS park site at NASA’s Kennedy Space Center in Florida on Jan. 4, 2021. One MLP is undergoing crawlerway conditioning – a several month-long project to ensure the path the rocket takes from the VAB to the launch pad is strong enough to support the weight for the upcoming Artemis I launch. The other MLP used during the shuttle program is in the process of being demolished.

A close-up view of the treads on crawler-transporter 2 (CT-2) as the behemoth vehicle moves along the crawlerway at NASA’s Kennedy Space Center in Florida on Jan. 22, 2021. Teams are working to ensure the crawlerway, the path the CT-2, mobile launcher, and Space Launch System rocket with Orion atop will take from the Vehicle Assembly Building to Launch Complex 39B, is strong enough to withstand the weight and provide stability for the Artemis I mission. CT-2 carrying mobile launcher platform 1, used during the shuttle program, was driven back and forth on the crawlerway with several cement blocks, each weighing about 40,000 pounds to strengthen the crawlerway for launch. Artemis I will be the first in a series of increasingly complex missions to the Moon. Under the Artemis program, NASA aims to land the first woman and the next man on the Moon in 2024 and establish sustainable lunar exploration by the end of the decade.

A close-up view of tread marks from crawler-transporter 2 (CT-2) as the behemoth vehicle moves along the crawlerway at NASA’s Kennedy Space Center in Florida on Jan. 22, 2021. Teams are working to ensure the crawlerway, the path the CT-2, mobile launcher, and Space Launch System rocket with Orion atop will take from the Vehicle Assembly Building to Launch Complex 39B, is strong enough to withstand the weight and provide stability for the Artemis I mission. CT-2 carrying mobile launcher platform 1, used during the shuttle program, was driven back and forth on the crawlerway with several cement blocks, each weighing about 40,000 pounds to strengthen the crawlerway for launch. Artemis I will be the first in a series of increasingly complex missions to the Moon. Under the Artemis program, NASA aims to land the first woman and the next man on the Moon in 2024 and establish sustainable lunar exploration by the end of the decade.

A close-up view of the treads on crawler-transporter 2 (CT-2) as the behemoth vehicle moves along the crawlerway at NASA’s Kennedy Space Center in Florida on Jan. 22, 2021. Teams are working to ensure the crawlerway, the path the CT-2, mobile launcher, and Space Launch System rocket with Orion atop will take from the Vehicle Assembly Building to Launch Complex 39B, is strong enough to withstand the weight and provide stability for the Artemis I mission. CT-2 carrying mobile launcher platform 1, used during the shuttle program, was driven back and forth on the crawlerway with several cement blocks, each weighing about 40,000 pounds to strengthen the crawlerway for launch. Artemis I will be the first in a series of increasingly complex missions to the Moon. Under the Artemis program, NASA aims to land the first woman and the next man on the Moon in 2024 and establish sustainable lunar exploration by the end of the decade.

A close-up view of one of the treads on crawler-transporter 2 (CT-2) as the behemoth vehicle moves along the crawlerway at NASA’s Kennedy Space Center in Florida on Jan. 22, 2021. Teams are working to ensure the crawlerway, the path the CT-2, mobile launcher, and Space Launch System rocket with Orion atop will take from the Vehicle Assembly Building to Launch Complex 39B, is strong enough to withstand the weight and provide stability for the Artemis I mission. CT-2 carrying mobile launcher platform 1, used during the shuttle program, was driven back and forth on the crawlerway with several cement blocks, each weighing about 40,000 pounds to strengthen the crawlerway for launch. Artemis I will be the first in a series of increasingly complex missions to the Moon. Under the Artemis program, NASA aims to land the first woman and the next man on the Moon in 2024 and establish sustainable lunar exploration by the end of the decade.

Teams at NASA’s Kennedy Space Center in Florida are working to ensure the crawlerway, the path the crawler-transporter 2 (CT-2), mobile launcher, and Space Launch System rocket with Orion atop will take from the Vehicle Assembly Building to Launch Complex 39B, is strong enough to withstand the weight and provide stability for the Artemis I mission. In this view on Jan. 22, 2021, CT-2 carrying mobile launcher platform 1 that was used during the shuttle program was driven back and forth on the crawlerway with several cement blocks, each weighing about 40,000 pounds to strengthen the crawlerway for launch. Artemis I will be the first in a series of increasingly complex missions to the Moon. Under the Artemis program, NASA aims to land the first woman and the next man on the Moon in 2024 and establish sustainable lunar exploration by the end of the decade.

A close-up view of the treads on crawler-transporter 2 (CT-2) as the behemoth vehicle moves along the crawlerway at NASA’s Kennedy Space Center in Florida on Jan. 22, 2021. Teams are working to ensure the crawlerway, the path the CT-2, mobile launcher, and Space Launch System rocket with Orion atop will take from the Vehicle Assembly Building to Launch Complex 39B, is strong enough to withstand the weight and provide stability for the Artemis I mission. CT-2 carrying mobile launcher platform 1, used during the shuttle program, was driven back and forth on the crawlerway with several cement blocks, each weighing about 40,000 pounds to strengthen the crawlerway for launch. Artemis I will be the first in a series of increasingly complex missions to the Moon. Under the Artemis program, NASA aims to land the first woman and the next man on the Moon in 2024 and establish sustainable lunar exploration by the end of the decade.

A close-up view of some of the treads on crawler-transporter 2 (CT-2) as the behemoth vehicle moves along the crawlerway at NASA’s Kennedy Space Center in Florida on Jan. 22, 2021. Teams are working to ensure the crawlerway, the path the CT-2, mobile launcher, and Space Launch System rocket with Orion atop will take from the Vehicle Assembly Building to Launch Complex 39B, is strong enough to withstand the weight and provide stability for the Artemis I mission. CT-2 carrying mobile launcher platform 1, used during the shuttle program, was driven back and forth on the crawlerway with several cement blocks, each weighing about 40,000 pounds to strengthen the crawlerway for launch. Artemis I will be the first in a series of increasingly complex missions to the Moon. Under the Artemis program, NASA aims to land the first woman and the next man on the Moon in 2024 and establish sustainable lunar exploration by the end of the decade.

Ground support technicians walk alongside NASA's upgraded crawler-transporter 2 (CT-2), carrying mobile launcher platform 1, as it slowly travels on the crawlerway at the agency's Kennedy Space Center in Florida. The crawler's upgrades and modifications will be monitored and tested under loaded conditions during its travel to the crawlerway Pad A/B split and back to the crawler yard to confirm it is ready to support the load of the mobile launcher carrying the Space Launch System with Orion atop for the first test flight, Exploration Mission 1. The Ground Systems Development and Operations Program at Kennedy is managing upgrades to the crawler.

NASA's upgraded crawler-transporter 2 (CT-2) travels slowly along the crawlerway, carrying the mobile launcher platform at the agency's Kennedy Space Center in Florida. The crawler's upgrades and modifications will be monitored and tested under loaded conditions during its travel to the crawlerway Pad A/B split and back to the crawler yard to confirm it is ready to support the load of the mobile launcher carrying the Space Launch System with Orion atop for the first test flight, Exploration Mission 1. The Ground Systems Development and Operations Program at Kennedy is managing upgrades to the crawler.

During a load test of NASA's upgraded crawler-transporter 2 (CT-2), a ground support technician watches as the giant vehicle travels along the crawlerway at the agency’s Kennedy Space Center in Florida. The crawler's upgrades and modifications will be monitored and tested under loaded conditions during its travel to the crawlerway Pad A/B split and back to the crawler yard to confirm it is ready to support the load of the mobile launcher carrying the Space Launch System with Orion atop for the first test flight, Exploration Mission 1. The Ground Systems Development and Operations Program at Kennedy is managing upgrades to the crawler.

NASA's upgraded crawler-transporter 2 (CT-2), carrying mobile launcher platform 1, moves slowly along the crawlerway at the agency's Kennedy Space Center in Florida. The crawler's upgrades and modifications will be monitored and tested under loaded conditions during its travel to the crawlerway Pad A/B split and back to the crawler yard to confirm it is ready to support the load of the mobile launcher carrying the Space Launch System with Orion atop for the first test flight, Exploration Mission 1. The Ground Systems Development and Operations Program at Kennedy is managing upgrades to the crawler.

NASA's upgraded crawler-transporter 2 (CT-2), carrying mobile launcher platform 1, moves slowly along the crawlerway at the agency's Kennedy Space Center in Florida. The crawler's upgrades and modifications will be monitored and tested under loaded conditions during its travel to the crawlerway Pad A/B split and back to the crawler yard to confirm it is ready to support the load of the mobile launcher carrying the Space Launch System with Orion atop for the first test flight, Exploration Mission 1. The Ground Systems Development and Operations Program at Kennedy is managing upgrades to the crawler.

NASA’s upgraded crawler-transporter 2 (CT-2) travels slowly along the crawlerway carrying mobile launcher platform 1 at the agency’s Kennedy Space Center in Florida. The crawler's upgrades and modifications were being monitored and tested under loaded conditions during its travel to the Pad A/B split and back to the crawler yard to confirm it is ready to support the load of the mobile launcher carrying the Space Launch System with Orion atop for the first test flight, Exploration Mission 1. A truck sprays water in front of the crawler to control dust as the large vehicle moves along. The Ground Systems Development and Operations Program at Kennedy is managing upgrades to the crawler.

NASA's upgraded crawler-transporter 2 (CT-2) picks up mobile launcher platform 1 (MLP1) at the MLP park site near the Vehicle Assembly at the agency's Kennedy Space Center in Florida. The crawler's upgrades and modifications will be monitored and tested under loaded conditions during its travel to the crawlerway Pad A/B split and back to the crawler yard to confirm it is ready to support the load of the mobile launcher carrying the Space Launch System with Orion atop for the first test flight, Exploration Mission 1. The Ground Systems Development and Operations Program at Kennedy is managing upgrades to the crawler.

KENNEDY SPACE CENTER, FLA. -- A water truck (at right) creates a ghostlike image against the black sky as it sprays the dust on the dry crawlerway in front of space shuttle Endeavour (at left). The shuttle is rolling out to Launch Pad 39A for the STS-123 mission. The journey from the Vehicle Assembly Building began at 11:24 p.m. on Feb. 17, approximately 30 minutes before it's scheduled start time due to favorable weather conditions. The shuttle arrived at the launch pad at 4:45 a.m. Monday and was hard down at 6:22 a.m. On the mission, Endeavour and its crew will deliver the first section of the Japan Aerospace Exploration Agency's Kibo laboratory and the Canadian Space Agency's two-armed robotic system, Dextre. Launch is targeted for March 11. Photo credit: NASA/Amanda Diller