NASA is assisting the investigation into Blue Origin’s May rocket explosion, its administrator confirmed Sunday, as the space agency tries to keep up the momentum for its Artemis moon program.

Blue Origin’s New Glenn heavy rocket exploded during a test on May 28, producing a massive fireball that destroyed the rocket and significantly damaged the launch site. No one was killed or injured in the blast, but the malfunction threatened the timeline to return humanity to the lunar surface for the first time in over 50 years, as the rocket in question and its payload could be selected for Artemis IV, the first crewed lunar landing since 1972.