[rjbemsha]

The paper's results are consistent with cosmic ejecta, supporting the hypothesis of extraterrestrial airbursts/impacts 12,900 years ago. The wide geographic distribution of SLOs is consistent with multiple impactors.

[frithguild]

overlapping depressions with raised rims scattered across the Atlantic Coastal Plain from New Jersey to Alabama

I never knew this hypothesis was out there. Thanks for posting.

[Mike Darancette]

It would seem that potentially catastrophic strikes are more common than previously believed. We’ve been lucky the last 2,000 years.

[ProtectOurFreedom]

Perhaps Obama shouldn't be taking the lead on battling space aliens. Instead, we should let them pelt us with large extraterrestrial objects to further cool the planet.

For the latest news on how the Obama campaign is ready to battle space aliens, see Poll May Lead to Campaign Strategy Shift.

[TWhiteBear]

very interesting article.
The science seems sound as I would expect anything appearing in the Proceedings of the National Academy of Sciences to be.
These impacts probably wiped out the Clovis people.
TWB

[Yollopoliuhqui]

the neo-Velikovskians have been the object of ridicule and suppression for attempting to put this case for recent (historic times) celestial catastrophe before the mainstream scientific community during the past 20 years. Ancient mythology from around the world, in its essential form, has the story of the destruction of the Earth as its primary focus, with subsequent myth as a spin off of this actual event. Richard Firestone’s evidence makes this episode responsible for wiping out almost all life on the North American continent and the end of an ice age.

With all forms of archaeological dating based upon half-life radioactive decay, a yardstick that is now known to be modifiable in high energy plasma discharges, these events may one day be dated to a far more recent time, in the 4k - 5k year old bracket.

www.thunderbolts.info
http://sites.google.com/site/dragonstormproject/
www.holoscience.com
http://cosmictusk.com/clovis-population-decline-at-younger-dryas
http://www.knowledge.co.uk/sis/resource.htm