Posted on 06/26/2012 12:27:17 AM PDT by Windflier
Strictly speaking, there can be no someplace else.
Of course super novae are caused by Republican policies and George Bush is responsible for the destruction of alien life as a result. (sarcasm)
And I ate all those leftover Milky Way bars after halloween......the horror.....the horror.....
"As democracy is perfected, the office represents, more and more closely, the inner soul of the people. We move toward a lofty ideal. On some great and glorious day the plain folks of the land will reach their hearts desire at last, and the White House will be adorned by a downright moron."
--H.L. Mencken, The Baltimore Evening Sun, July 26, 1920
***A supernova sterilizes an alien world in this artist’s impression. Credit: David A Aguilar (CfA)****
There is a Navajo rez with water on other planets? That volcanic plug looks too much like Aglatha Peak in NE AZ.
To whit, denser areas are going to have higher odds of cosmic collisions and other cosmic events (supernovae) that are going to keep knocking down the chances for ETI to develop.
Including Earth I suppose.
Which means they'll be looking for a new place to live.
Well, Obama believes there is intelligent alien life in the Milky Way galaxy. That’s why he’s not going to deport them while they are earning college degrees.
Do you believe the Bible?
There are some common sense rules of thumb about life in the Milky Way. To start with, create a timetable for it that is 14.5 billion years.
The first 4.5 billion years are pretty much lost because the galaxy was in a formative period, and its first stars had yet to start exploding and forming metals in the process, and the overall galaxy was very irradiated and “hot”. So the actual life formation on planets that *could* be habitable probably started around 10 billion years ago.
Based on the history of Earth, it took about a billion years for basic one-celled life to emerge. Earth might have been helped by a bombardment of metals from a nearby supernova, also possibly by the Theia object, increasing its mass and possibly giving a lot of metals to Earth.
We have absolutely no evidence of “alien species” in the inner Milky Way, but we know they are in danger.
Planets closer than 6.5 light years to a supernova are probably annihilated.
Gold mining probably wasn't their only motivation for being here. They also may not have been the most powerful race out there. Perhaps they were forced to pick over the meager takings in the outer bands of the Milky Way, due to territorial claims by others.
Yes, I almost didn't post the article because of the lead statement. The author could have done a better job with that statement. I would have said, 'the growing consensus among scientists, is that there is intelligent alien life in our galaxy.'
The rest of the article is quite good.
I've never been able to wrap my head around the concept of other universes. We only have one physical universe that we're able to observe (at this time). Other universes have been postulated, but remain theoretical at this point.
I'm content with the one universe we have. There's more of it than any one person can discover in a lifetime.
Great picture. We sometimes need to be reminded that we’re orbiting a minor star, in the hinterlands of a second-rate galaxy. It might be home to us, but it’s not even a whistle stop on the Galactic Express :-)
To whit, denser areas are going to have higher odds of cosmic collisions and other cosmic events (supernovae) that are going to keep knocking down the chances for ETI to develop.
That makes sense. It would also tend to explain why life flourishes on this planet. Our solar system is located in the outer bands of the Milky Way galaxy.
As to SETI, I've believed for a long time that they're monitoring the wrong thing. If advanced civilizations are out there, I highly doubt that they're using the medium of radio to communicate across space. If SETI ever does find coherent emanations of radio signals, they'll likely be coming from a civilization of similar advancement to ours.
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