Tuesday, December 4, 2007

Ponder this, a year ago, Milky Way time

Here is something to think about.

You know how a "year" refers to how long it takes the earth to go around the sun? And how an Earth year is 365 days? And how this is also one complete cycle of the four seasons?

Well, the Earth within the Solar System is part of the Milky Way galaxy, which rotates. Do you know how long a Milky Way "year" is, where the Earth goes once around it?

A Milky Way year is around 250 million years.

What was the earth like 250 million years ago? It was the end of the Permian Period and the beginning of the Triassic Period, which was the rise of dinosaurs, crocodiles and turtles.

There are billions of galaxies. The Milky Way galaxy is just one, and by no means the largest or brightest. One Milky Way year, for the section where the Earth resides, is 250 million years ago.

Yet God knows not only all the galaxies and all the matter of the universe (a universe "year" is estimated to be 130 billion years by the way), but God also knows the action of every subatomic particle, speck of dark matter, and every unit of energy throughout the universe.

There's a movie about "God being killed" that is much discussed. What a joke.

Humans do not even know how to tell the times and the seasons in the galaxy in which they reside, and wonder why the planets in the Solar System are warming.

Speaking of crocodiles first appearing on Earth one Milky Way year ago, some poor alligator (an 8 foot long one!) menaced some police on the road about a mile from my abode and they had to shoot it.