Groups comparison

Spacefaring age(Spacefarer era)[spacefaring era;spacefarer age] - 1971 to 2019
Set in an age where space travel is fairly commonplace, colonies outside the protagonist's home planet have already been set (or are being set right at the moment) and there's interplanetary commerce and possibly even tourism going on.

Space Age - 2000 to 2018
An era started by the launch of Sputnik, the first artificial satellite, in 1957.