"Reentry is our priority-one objective for a reason," said Mike Sarafin, who leads the Artemis I mission management team.A new designNASA tested a boilerplate version of the Orion spacecraft in December 2014, launching it to an altitude of nearly 6,000 km.The Orion vehicle flown during the EFT-1 mission featured the same basic ablative material, an epoxy known as AVCOAT that was also used by the Apollo capsules during their returns from the Moon half a century ago.There are 186 different molded blocks on the bottom of Orion, a veritable jigsaw puzzle to cover the bottom of the 5-meter-wide spacecraft.However, unlike with Orion's heat shield, NASA officials believe they have adequately characterized the risk for the parachutes through an extensive test campaign."