The rocket’s shock wave created a cloud of water vapor, similar to a jet’s contrail. "It’s a very emotional experience. It brings tears to my eyes. It’s amazing," Astronaut Zena Cardman ...
source https://www.desainpremium.com/2019/08/the-amazing-new-shockwave-torch-makes.html#3abc91e90f4fbd020a6e975b728c0095
