[saganite]

There was a theory floating around I read about recently that the Earth is actually part of a small galaxy or cluster of stars that collided with the Milky Way Galaxy.

And of course, we all know about the Dec 21 2012 theory of our demise based on a perfect alignment of our solar system with the center of the galaxy or some such.

[adorno]

There was a theory floating around I read about recently that the Earth is actually part of a small galaxy or cluster of stars that collided with the Milky Way Galaxy.

Some 250-300 million years ago, there was a mass extinction of dinosaurs and other life on earth. That kind of extinction occurs cyclically on our planet every 250-300 million years. My belief, which I've expressed in the past, is that, every 300 million years or so, out planetary system (including earth, of course), in its orbital path around the galaxy, encounters a dangerous region in our galaxy which disturbs all life on our planet. We will have that encounter again, but, personally, I'm not worried. But, I'll leave a warning note to my great, great, great... great, great, great..... grandchildren.

[PeaceBeWithYou]

Scientists Now Know: We're Not From Here!