It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Major extinction events
In a landmark paper published in 1982, Jack Sepkoski and David M. Raup identified five mass extinctions. They were originally identified as outliers to a general trend of decreasing extinction rates during the Phanerozoic,[3] but as more stringent statistical tests have been applied to the accumulating data, the "Big Five" cannot be so clearly defined, but rather appear to represent the largest (or some of the largest) of a relatively smooth continuum of extinction events.[3]
1.Cretaceous–Tertiary extinction event (End Cretaceous or K-T extinction) – 65.5 Ma at the Cretaceous.Maastrichtian-Paleogene.Danian transition interval.[4] The K–T event is now called the Cretaceous–Paleogene (or K–Pg) extinction event by many researchers. About 17% of all families, 50% of all genera[5] and 75% of species became extinct.[6] In the seas it reduced the percentage of sessile animals to about 33%. The boundary event was severe with a significant amount of variability in the rate of extinction between and among different clades. Mammals and birds emerged as dominant land vertebrates in the age of new life.
Impact events
The impact of a sufficiently large asteroid or comet could have caused food chains to collapse both on land and at sea by producing dust and particulate aerosols and thus inhibiting photosynthesis. Impacts on sulfur-rich rocks could have emitted sulfur oxides precipitating as poisonous acid rain, contributing further to the collapse of food chains. Such impacts could also have caused megatsunamis and / or global forest fires.
Most paleontologists now agree that an asteroid did hit the Earth about 65 Ma, but there is an ongoing dispute whether the impact was the sole cause of the Cretaceous–Tertiary extinction event.[41][42] There is evidence that there was an interval of about 300 ka from the impact to the mass extinction.[41] In 1997, paleontologist Sankar Chatterjee drew attention to the proposed and much larger 600 km (370 mi) Shiva crater and the possibility of a multiple-impact scenario.
Its 27 million-year orbit could also explain a pattern of mass extinctions on Earth, scientists say.
Originally posted by XplanetX
It is my opinion that they are forced to anounce it because it will be visible in the sky very soon.
I also suspect that it is closer than they are reporting.
Originally posted by XplanetX
Also have a close look at our sattelite the moon.
It looks like it has had the # beaten out of it. It's about to get the # beaten out of it again very shortly.
Originally posted by Neopan100
So then it is there????
One day it's on the next day it's a hoax...so I guess this is for real? Where are all the debunkers now?
Originally posted by XplanetX
Also have a close look at our sattelite the moon.
It looks like it has had the # beaten out of it. It's about to get the # beaten out of it again very shortly.
I have edited the original post and added a link to an article by CNN dated July 25, 2011. The article concerns ELENIN.
So you know: iReport is the way people like you report the news. The stories in this section are not edited, fact-checked or screened before they post. Only ones marked 'CNN iReport' have been vetted by CNN.
Originally posted by Phage
reply to post by XplanetX
I have edited the original post and added a link to an article by CNN dated July 25, 2011. The article concerns ELENIN.
That is not an article by CNN. Maybe you missed this:
So you know: iReport is the way people like you report the news. The stories in this section are not edited, fact-checked or screened before they post. Only ones marked 'CNN iReport' have been vetted by CNN.
ireport.cnn.com...
edit on 8/14/2011 by Phage because: (no reason given)
Originally posted by Wrabbit2000
As I understood this report when I'd first seen it, they were more likely refering to Nemesis than Nibiru. Perhaps I'm misunderstanding them...