The early era of space exploration was mainly focused on the unsaid competition called “space race” between the Soviet Union and the United States. With the launch of first human made object in space i.e., Sputnik 1 by Soviet Union on 4th October 1957 this competition began continuing with the spirit that the United States did the first moon landing Apollo 11 mission on 20 July 1969, these instances are often known as landmarks of this era. The Soviet Union led the way in the firsts whether it was first living being in orbit in 1957, launch of the first space station in 1971, first spacewalk and many more. However, as the focus of the world changed from the “space race” to renewable hardware slowly this competition turned into collaboration and launched the International Space Station.