The document summarizes major events and discoveries in space exploration from the 1950s to the present. It describes the space race between the US and USSR in the 1950s-60s, including the first satellites, dogs and humans in space. The 1960s saw continued competition and culminated with the US landing on the moon in 1969. The 1970s saw expanded international cooperation and robotic exploration of other planets. The 1980s brought reusable shuttles and space stations. By the 1990s, stations were permanently crewed and Mars was explored by rovers. Recent decades saw the rise of the International Space Station and continued robotic discovery.