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Are We Alone?

  • Jan Kulísek
  • 12/2/2017, 12:43:17

This entry was originally inspired by a documentary on History Channel called The Earth Without The Moon. However, the History Channel decided to take it down and regrettably it is no longer available on YouTube or anywhere else. The thesis of this video was that the Earth is extremely lucky to have a Moon, because without it, almost certainly there would be no intelligent life on our blue planet a maybe the planet would not even be blue either. Perhaps this short video can supplement the missing one hour documentary:



The reasons why we are here are quite simple: 10 million years into its existence our Earth collided with a planet of the right size with the right velocity and under the right angle creating the Moon while joining its core with the planet. And in addition the Earth was also of correct size while orbiting at the right distance around the just right type of a star.

Then consider another video by Steven Hawking from Genius TV Series on PBS regarding how many stars are out there:



This episode unfortunately is not available in its entirety on YouTube, but the "geniuses" needed to pile up quite a few tons of sand to figure out how the approximately 300 billion stars look like. I can provide at least a screenshot of that pile:

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And that's only in our Milky Way galaxy. In addition, there are 100 billion galaxies in the Universe, most of them just like our Milky Way. How big of a number is 100 billion times 300 billion? Ridiculously large one cannot possibly imagine. Or, just imagine one billion times of one third of the above pile of sand. Easy, isn't it?

However, let's go back where we started. For the humans to come along it took just the right size of a planet to be hit with the right size of an object of right velocity under right angle orbiting around the right size and right type of a star and all of that at just the right time. And I didn't even mentioned the asteroid that wiped out the dinosaurs and started the new epoch for the rise of mammals. And again, at the right time and at the right place.

Then, I am not sure, but I tend to think of the unthinkable: The Universe is most likely an awfully lonely place.

Interesting article on the alien subject: Why we’ll never meet aliens