Men 's magazines of the time imagined moon bases that were expected to be manned . This year , NASA announced for the first time that an Earth-sized planet that could be habitable had been found 490 light years from us . Only 12 people have walked on the lunar surface and none since then . NASA says it is planning on sending humans to Mars in the future . There have been huge technological leaps and space discoveries in the last 40 years .
Men 's magazines of the time imagined moon bases that were expected to be manned . Only 12 people have walked on the lunar surface and none since then . NASA says it is planning on sending humans to Mars in the future . There have been huge technological leaps and space discoveries in the last 40 years .