The Space Shuttle Challenger Memorial is seen during a wreath laying ceremony that was part of NASA's Day of Remembrance, Thursday, Jan. 22, 2026, at Arlington National Cemetery in Arlington, Va. Wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Keegan Barber)
NASA's massive Crawler-Transporter, upgraded for the Artemis program, carried the agency's SLS (Space Launch System) and Orion spacecraft on the Mobile Launcher from the Vehicle Assembly Building to Launch Pad 39B at NASA's Kennedy Space Center in Florida in preparation for the Artemis II mission.