Space has not changed but technology has, in many cases, improved dramatically. A good example is digital technology where today's cell phones are far more powerful than the computers on the Apollo Command Module and Lunar Module that we used to navigate to the moon and operate all the spacecraft control systems.

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Quote text and notes from Wikiquote: Neil Armstrong (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.