NASA: THE TRUTH about the END OF THE WORLD on 21 Dec

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Well, I perused the site that was scaring me.
Let's see here:
100% of them are selling something
50% are blogs
25% are astrologers
24% don't link to the article they say exists
and 1% links to a legitimate newspaper talking about natural disasters in 2012 (WOW! What a prediction!)

QED, these people are dumb

I'm currently selling end of the world insurance. Pay me $100 now and if the world ends on 21 December and in the process kills everyone on the planet I will pay you $1 Million! I take most credit cards (& PayPal)

Astrophysics is alive and well and does not deal with astrological nonsense.

There is only one Sun in the solar system. Yes, it is undergoing change. In addition to the eleven year sunspot cycle there are long term trend and the longest one of all -- the exhaustion of the hydrogen in the sun. When hat happens it will fuse helium and become much hotter than it is now. At that point the oceans will evaporate. When means if our descendants are not off this rock by then they will become extinct.

ruveyn

That why they were experts on "end times".

If our species even exists, anymore.

-Bill, otherwise known as Kraichgauer

While the sun is good for five billion years, species in the geologic record last five million, and according to where ours is counted from we are either five million years old, or the clock restarted 130,000 years ago.

While we do share DNA with chimps, going way back, recently we find neanderthal, denisovan, but not erectus? We also share DNA with pond scum.

Our line split and neanderthal went north, denisovan split from them, and after a half million years rejoined. Erectus was not invited to the party, and most of the early man fossils are likely erectus ancestors.

While we know from DNA that sapiens and neanderthal were the same a half million years ago, there is nothing in the bone record, from 500,000 to 130,000 years ago, when fully modern humans appear, for either group.

In the north, Europe to Asia, is a sapien neanderthal mix, in the south is a sapien pure stock, and nowhere is there a mix with erectus, or other versions. All of the sapiens in the south come from the same stock of 130,000 years ago.

The lack of a human chimp hybred, is not from lack of trying. By that measure, erectus was not the same species, or there would be evidence.

That dates our species back to under a half million years. So we should be good for another 4.5 million, or a bit more if the starting date is 130,000 years ago.

While the pointed stick, sharpened rock, use of fire, are old, the thrown spear and axe come from sapiens 50,000 years ago, then ten thousand years later, the spear thrower, and the last erectus died 20,000 years ago. While the same technology could have killed the neanderthal, it did not, and sapiens and neanderthal lived in the same areas for 20,000 years.

Sapiens killed erectus, climate change killed neanderthal. That was followed by an ice age, followed by The Lesser Dryas Period, a 1500 year worldwide dust storm, which are shorter period major changes that reduced the population, mostly in the north.

The geologic record has much more to fear than long cycles.

I'm more of the line of thinking that Neanderthals got out bred and absorbed by us moderns.

-Bill, otherwise known as Kraichgauer

Or out bred, out hunted and sometime out killed by the Cro Mags. I do not believe there were many successful matings of Neanderthals and Cro Mags that bred true in the F2 generaion.

At the end of the last Ice Age Cro Mags had better technology and better information exchange that allowed them to survive until it got warm enough. The Neanderthal has not left much evidence that he conceptualized long term and thought much past the present moment.

ruveyn

DNA evidence shows, I believe, three to five percent of our genetic lineage can be traced to Neanderthals and other archaic humans.

-Bill, otherwise known as Kraichgauer

Which means 95 percent cannot be so traced. Not to much of Neanderthal made it into the Cro Mag germ line later to become homo sapien sapien. Besides which we are all descendants of the Cylon-Human half breed Hera. She is our genetic Eve.

ruveyn

Actually, since the Neanderthal genome has been decoded, we can tell that that tiny amount of our DNA can in fact be traced back to Neanderthals. No need for Cylons. Beside, aren't Cylons machines that replaced reptiles?

-Bill, otherwise known as Kraichgauer

^^^^^^The human brain is part reptilian,the amygdala is the reptile brain.

The reptiles are waiting for puny humans to die off so they can take over the planet.

My thought is we were given to much knowledge so that we will kill ourselves off and another occupant will take our place.
We are like toddlers with matches.

Now that you mention it, global warming would favor reptiles.

For most of the age of life on the planet, it was about 125F.

When the Darian Gap was filled by volcanos, it blocked the flow of warm Pacific water into the Gulf of Mexico, which really drove the Gulf Stream, making England tropical, and Norway like Italy is now.

Crocs and hippos frolicked in the Thames.

The series of waves of ice is recent, four waves over under a million years, with over a billion warm years before. This cooling favored mammals. Small rodents living in holes during the day, coming out at night, then started evolving, which did not come to much till it got cooler.

Reptiles grew large during warm periods when there was natural heat and plenty to eat, Mammals grew larger after it cooled.

They seem to have no natural place, hence keep changing, where the Croc was perfect a hundred million years ago, and still is, never changing a bump or tooth.

The Darian Gap, now called Panama, is the leading cause of everything that is wrong with this planet, volcanoes. The Siberian and Deccan Traps, both almost ended life, forced mutations, and ruined things.

Causing ice ages, where before a metor would just cool things down to 120F for a few years, or a volcano, now it leads to the water being frozen, and taking thousands of years to melt. Even the oceans became too cold for reptile life.

It has finally lead to the whole planet being overrun by genetically and mentally unstable apes, who have no natural habitat, and are destructive to the habitat of others. They are just a bunch of bad monkeys!

We need to SPANK those monkeys!

^^^^^^^^^

http://news.yahoo.com/mayan-apocalypse- ... 52054.html

Remind me why I was worried again?