Thoughts on the Voyager 1 (and 2)
It blows my mind to think that the satellites have 1) been out in space for 35 years and 2) still transmit signals.
It blows my illusion of time to think about the fact that, although it has taken the Voyager I 35 years to get to its present point, it only takes 17 hours for information to get back to Earth.

(Source: news.discovery.com)