Construction workers assess the repairs needed on the surface of Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Feb. 22, 2019. The launch pad has undergone upgrades and modifications to accommodate NASA's Space Launch System and Orion spacecraft for Exploration Mission-1 and subsequent missions. Upgrades include new heat-resistant bricks on the walls of the flame trench and installation of a new flame deflector. All of the upgrades have been managed by Exploration Ground Systems.

Constructions workers are busy repairing the concrete on the surface of Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Feb. 22, 2019. The launch pad has undergone upgrades and modifications to accommodate NASA's Space Launch System and Orion spacecraft for Exploration Mission-1 and subsequent missions. Upgrades include new heat-resistant bricks on the walls of the flame trench and installation of a new flame deflector. All of the upgrades have been managed by Exploration Ground Systems.

A construction worker sands a section of a wood beam on the surface of Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Feb. 22, 2019. The launch pad has undergone upgrades and modifications to accommodate NASA's Space Launch System and Orion spacecraft for Exploration Mission-1 and subsequent missions. Upgrades include new heat-resistant bricks on the walls of the flame trench and installation of a new flame deflector. All of the upgrades have been managed by Exploration Ground Systems.

To continue his work, a construction worker secures clamps on a section of metal on the surface of Launch Pad 39B at NASA's Kennedy Space Center in Florida on July 26, 2018. The launch pad has undergone upgrades and modifications to accommodate NASA's Space Launch System and Orion spacecraft for Exploration Mission-1 and subsequent missions. Upgrades include new heat-resistant bricks on the walls of the flame trench and installation of a new flame deflector. All of the upgrades have been managed by Exploration Ground Systems.

Construction workers stage parts and equipment nearby Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Feb. 22, 2019. The launch pad has undergone upgrades and modifications to accommodate NASA's Space Launch System and Orion spacecraft for Exploration Mission-1 and subsequent missions. Upgrades include new heat-resistant bricks on the walls of the flame trench and installation of a new flame deflector. All of the upgrades have been managed by Exploration Ground Systems.

Construction workers stage parts and equipment nearby Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Feb. 22, 2019. The launch pad has undergone upgrades and modifications to accommodate NASA's Space Launch System and Orion spacecraft for Exploration Mission-1 and subsequent missions. Upgrades include new heat-resistant bricks on the walls of the flame trench and installation of a new flame deflector. All of the upgrades have been managed by Exploration Ground Systems.

Construction workers stage parts and equipment nearby Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Feb. 22, 2019. The launch pad has undergone upgrades and modifications to accommodate NASA's Space Launch System and Orion spacecraft for Exploration Mission-1 and subsequent missions. Upgrades include new heat-resistant bricks on the walls of the flame trench and installation of a new flame deflector. All of the upgrades have been managed by Exploration Ground Systems.

A construction worker welds a section of metal on the surface of Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Feb. 22, 2019. The launch pad has undergone upgrades and modifications to accommodate NASA's Space Launch System and Orion spacecraft for Exploration Mission-1 and subsequent missions. Upgrades include new heat-resistant bricks on the walls of the flame trench and installation of a new flame deflector. All of the upgrades have been managed by Exploration Ground Systems.