It sometimes seems strange to realise that the Space Age began only in October 1957, with the ascent of Russia’s Sputnik 1 – an event which was by no means universally popular in the USA. Remember, this was the time of the Cold War; the USSR was a super power, and the American space programme was in trouble.
Kuiper Belt South Polar Region Super Power Arecibo Observatory High Mountain Ridge
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
This is a preview of subscription content, log in to check access