NASA engineers learnt a large lesson from this incident; that substantial parts of particles can be liberated from the ET and will hit the RCC materials. They made slight modifications on the ET to be certain that substantial particles could not effortlessly come off it, even so more compact-sized debris https://www.facebook.com/permalink.php?story_fbid=pfbid0S5kCy9ofdZHP48BK1Hrvo6Pt3k19B6C3UiKxBuAVPiWNcFzDay1yYF1cQ8EJW8J3l&id=61562415773754&__cft__[0]=AZXd1QS2rNIw0qnZk5SlTD4NeGL6ozkZ05OUFZf974x4uy-c_LkoZRNsxLRo7BHhrLw_dUFCvDc9tZE7JkMCRnFLitbS8BucwCZAdgnNsH-HGQu7qS7ch0ZnGuroOqn885RVgQCxYP2ooevu9vI6rYzIlxcWvi0RjlGnvsd5xQe5gYhl70YA4cgtMcB5F_JhGJm0Oxe2VCB19HHzcdQXo-Ky&__tn__=%2CO%2CP-R