Original sentence: The rocket exploded 23 seconds after shutting off the engines, destroying the rocket and launch tower in the biggest explosion in the history of rocketry.. The rescue system saved saved the dummy spacecraft again
Edited sentence: After this flight fuel filters were installed in later models.All subsequent flights had freon fire extinguishers installed next to every engine.The destroyed complex was photographed by American satellites, disclosing that the Soviet Union builds the the Moon rocket.The rescue system saved saved the dummy spacecraft again.The rocket exploded 23 seconds after shutting off the engines, destroying the rocket and launch tower in the biggest explosion in the history of rocketry.. 2600 tons of fuel had the power of the small nuclear bomb