Human-ish

Rantings about the human race
Just a Spec on a Spec author 21, August

We are just a spec on a spec and probably even smaller than that. To try to put this in perspective you will have to be good with zeros.

First, how fast is light? It is about 186,282 miles per second. The closest star to us is our Sun at 93 million miles away, roughly 8 light minutes. The next closest star, our best chance for life after earth is Alpha Centauri (actually 3 stars) just 4.27 light years away. or in other words 5.88 trillion miles multiplied by 4.27. That is a tiny, tiny bit over 25,000,000,000,000 miles away. How many years away is that at say 17,000 mph (how fast the space shuttle orbits the earth). It would take 1,407,588,235.3 years to reach the next “sun”. That is 1.407 Billion-ish.

So we have the distance and we can see the star from earth but can the star see the earth. Alpha Centauri A is the biggest and is about 10% more massive than our Sun, with a radius about 23% larger. How big is our sun? It would take 109 Earths to stretch across the Sun, and it would take over one million Earths to fill it. The circumference of the earth at the equator is about 24,901.55 miles. The Sun’s circumference is 2,713,406 miles and Alpha Centauri is 3,337,489.4 miles in circumference. We are talking millions of miles around versus 10’s of thousands of mile around. Still not convinced we are nothing.

With the Hubble telescope we have taken Deep Field space pictures and stared at what we believe as of now, the edge of the known universe. How far did we see…. after 10 days of pictures with exposures for 15-40 minutes per shot taken in ultraviolet, blue, red, and infrared light as well, showed us 1,500 galaxies in a space the size of a dime 75 ft away at various stages of evolution. This image shows us galaxies 10 billion years into the past, perhaps less than one billion years after the universe’s birth in the Big Bang.

Once again, not even a spec of a spec… specs are galaxies. So what makes humans so special compared to everything else?

Think about it.


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