Apollo 13 Oxygen Tank Explosion

Even before the first U. S. astronaut entered space in 1961, planning for a centralized facility to communicate with the spacecraft and monitor its performance had begun, for the most part the brainchild of Christopher C. Kraft, who became NASA’s first flight director. During John Glenn’s Mercury Friendship 7 flight in February 1962 (the first crewed orbital flight by the U. S. ), Kraft was overruled by NASA managers. He was vindicated by post-mission analysis, and implemented a rule that during the mission, the flight director’s word was absolute —to overrule him, NASA would have to fire him on the spot. Flight directors during Apollo had a one-sentence job description, “The flight director may take any actions necessary for crew safety and mission success. ”



At last, on July 1, 2004, the Cassini spacecraft fired off its breaking rocket, glided into orbit around Saturn, and started taking pictures that left scientists in awe. It wasn't as if they hadn't been prepared for such wonders. The weeks leading up to Cassini's arrival at Saturn had served to intensify their already heated anticipation. It seemed as if each approach-picture taken was more enticing than the one preceding it. What is the difference between a Lunar Eclipse and New Moon? They seem quite similar and there is often confusion between the two. A lunar eclipse happens twice a year whereas a new moon happens once a month. Here is further clarification: "Makemake is in the class of rare Pluto-like objects, so finding a companion is important. The discovery of the moon has given us an opportunity to study Makemake in far greater detail than we ever would have been able to without the companion," Dr. Parker continued to explain.