My friend Brennan Beck wrote to me in an email we were discussing a Star Wars campaign based on G.U.R.P.S playing elements, something to consider about galactic distances and how big is big. I thought this might be of interest to my non existant audience, and asked him permission to post his musings on bytesandbeans.com. Here is how it all started:
For my “Star Wars” campaign and just out of interest, I decided to try and do some math and get a better idea of how big our Universe is. In the Star Wars movies “the galaxy” is the setting for the movie, but it must have been a REALLY small galaxy.
Here’s my model of how big the universe really is based on the idea of driving across our own galaxy in a car at highway speeds. I’ve calculated this from information freely available on the web, but I feel confident that if you do the math you’ll get pretty much the same answer. Now of course, this fanciful journey is impossible for a number of reasons, but if you “could” drive across the universe, when would you have had to have left in order to be arriving from there to here today? This assumes 8 straight hours of driving per day at 60 miles per hour (8 hours of sleep and 8 hours for eating, getting ready, and otherwise having some sort of life, but only 8 hours of driving each day – which is a whole lot if you have to do it for more than a day.) If you imagine a car going out of control at 60mph, you’ll realize that 60 mph is REALLY darn fast for a human being to be traveling.
Across one time zone (at the equator, which is a bit larger than in the US) Roughly the distance from Orlando to Dallas) – You would have had to have left two days ago (8 hours per day @ 60 mph)
Around the whole world at the equator – You would have had to have left almost two months ago (It would take about 7 weeks to drive around the world if there were a highway around the world).
From the moon – You would have had to have left one and a half years ago (Christmas before last, basically)
From Mars – You would have had to have left about 300 years ago (About the time of Issac Newton, Bach, and Handel)
From the Sun – You would have had to have left about 500 years ago (About the time of Christopher Columbus and the end of the Medieval
period)
From Neptune or Pluto – You would have had to have left about 16,000 years ago (No one’s sure what was going on back then, but this was probably about the time of the invention of fire and the wheel. It’s definitely way back before any sort of recorded history such as Egyptian Hieroglyphs) (This takes our current space probes about 10years, which should give you some idea how fast they move – about 60,000 mph).
From Alpha Centauri (the closest star system to us) – You would have had to have left 140 million years ago (Again, who knows but this is generally believed to be before the ancestors of humans existed. It’s the time of the dinosaurs.) (Even at our current fastest speeds of 60,000+ mph you would have had to have left before the invention of fire and the wheel).
From the other side of the Milky Way (our own galaxy) – You would have had to have left about 3 trillion years ago (Still, no one knows… but this is generally agreed upon to be before the “big bang” occurred. In other words … before the Universe began) (Even at space probe speed we’re talking about having left before dinosaurs existed. And at the speed of light you would have had to have left before cave men drew the first cave drawings.)
From the nearest galaxy to us (Andromeda) – Are you serious? I’ve already said we’ve slid off the scale of all time and existence before we even left our own galaxy! (Even at 75,000 mph you would have to have left before the big bang is believed to have occurred. And even at the speed of light you would have had to have left 2 million years ago – which is almost back to the time of dinosaurs.)
Millions of Galaxies are known to exist with more space in between them than the size of the galaxies themselves. In short, even our own galaxy is so ridiculously large we can’t even begin to imagine its size, and yet it’s just a speck of sand on the beach of the universe.










