Can you remember back to the year 1970? This was the year the U.S. was supposed to make history by landing the first man on the moon. Two days after launch, while Apollo 13 was approaching the moon to begin lunar operations, something exploded on the ship. The crew had to overcome many life-threatening obstacles while on the trip back to earth. NASA discovered what caused the explosion on Apollo 13 after the crew was safe back on earth.
             "The Apollo 13 capsule was launched atop a Saturn V rocket on April 11, 1970. During all spacecraft launches, launch controllers on the ground keep a close watch on the spacecraft's systems. The Apollo 13 astronauts faced a dangerous situation when an oxygen tank in the command and service module exploded two days after launch, but they were able to use oxygen reserves in the lunar module and returned safely to the earth."
             On April 11, 1970 the Apollo 13(piloted by A. Lovell Jr., John L. Swigert Jr., and Fred Wallace Haise Jr.) was launched into space on a trip to the moon. Two days after launch, while Apollo 13 was approaching the moon to begin lunar operations, something exploded on the ship that caused the service module of the CSM(control systems module) to lose its oxygen, electrical power, and other systems, including its ability to achieve an abort maneuver for a direct return to earth. The crew of three had to shut down the CSM and quickly moved to the LM. When they shut down the CSM the heaters were shut off, the capsule and the LM(lunar module) would get as cold as 32° or below, the crew had to endure the cold temperatures for the next few days.
             During the trip around the moon and back to earth the crew had to overcome many life-threatening obstacles such as: near freezing temperatures, excess carbon dioxide in the LM, storing their urine, and re-entering earths atmosphere. The crew could not do anything about the near freezing temperatures. They overcame the lo
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