On this day, 42 years ago, on April 5, 1983 (February 22, 1983 in the lunar calendar), the United States 'second Challenger space shuttle successfully made its maiden voyage. On April 5, 1983, the United States 'second space shuttle, the Challenger, was launched at the Kennedy Space Center in Florida and began its first flight. The Challenger carried a total of four crew members: Commander Paul Weitzer, pilot Carol Bobko, and experts Storry Musgrave and Donald Peterson. This is the sixth time that the U.S. space shuttle has traveled around space. The first five flights were carried out by Colombia. The main task of the Challenger this time is to put a 2-and-a-half-ton "tracking and data relay" satellite into space orbit. This satellite is said to be the largest and most complex communications satellite in the world. NASA will use it as a relay station to maintain communications between the 26 payloads on the ground and in orbit and the space shuttle. Its second mission is that two experts will leave the cabin on the 6th to go to the open cargo hold and conduct the first space walk according to the flight plan. The event will last as long as three and a half hours and will aim to test new space suits and prepare for future satellite recovery and repair technology. In November 1982, when the United States 'first space shuttle "Colombia" made its first commercial flight, the original spacewalk plan failed to materialize due to a failure of the space suit. The flight will also conduct extensive testing of the new aircraft's performance, as well as testing plant seeds and special materials and microorganisms in space. The flight lasted five days and was scheduled to return to the ground on April 9 and land at Edwards Air Force Base in California.