What’s 21 billion kilometres away, 40 years old and carries a record featuring both Beethoven’s “Symphony No. 5” and Chuck Berry’s “Johnny B. Goode”?
No it’s not your reclusive uncle with the strange taste in music who lives in the middle of nowhere. It’s the Voyager 1 spacecraft.
Last Friday Voyager fired its thrusters for the first time in 37 years, which is all the more remarkable considering it involved sending a signal that took 19 hours and 35 minutes to travel outside of our own solar system to a radio antenna just 3.7m wide.
Now you may be thinking (much like your hypothetical uncle) why on Earth should I care about some random spacecraft? Why are we spending all this time, money and effort on some trivial pursuit?
Well I believe it’s far from trivial. In my opinion exploring the universe is one of the greatest uses of time, money and effort that exists. Hopefully after reading the rest of this post, you’ll understand why.