Skip to content


Experts confirm asteroid wiped out the dinosaurs

asteroid largepic Experts confirm asteroid wiped out the dinosaurs

WASHINGTON (AFP) – Dinosaurs were wiped out by a huge asteroid that smashed into Earth 65 million years ago with the force of a billion atomic bombs, scientists said, hoping to lay an age-old debate to rest once and for all.

The definitive verdict came from an international panel of experts who reviewed 20 years’ worth of evidence about what caused the Cretaceous-Tertiary (KT) extinction that wiped out more than half the species on the planet.

They determined it was a massive asteroid, measuring around 15 kilometers (nine miles) wide, which smashed into what is today Chicxulub in Mexico.

The event marked a pivotal point in history because it cleared the way for mammals to become the dominant species on Earth.

“The asteroid is believed to have hit Earth with a force one billion times more powerful than the atomic bomb at Hiroshima,” the researchers said in a report published in the journal Science.

“It would have blasted material at high velocity into the atmosphere, triggering a chain of events that caused a global winter, wiping out much of life on Earth in a matter of days.”

The panel of 41 scientists hope their findings will lay to rest once and for all the debate about what caused the KT extinction.

Some scientists have argued that dinosaurs and species including bird-like pterosaurs and large sea reptiles were wiped out by a series of volcanic eruptions in what is now India that lasted some 1.5 million years.

The eruptions spewed enough basalt lava across the Deccan Traps in west-central India to fill the Black Sea twice and were thought to have caused a cooling of the atmosphere and acid rain on a global scale.

But the evidence gathered for the study published in Science showed that marine and land ecosystems were destroyed rapidly in the KT extinction, leading the scientists to rule out volcanic activity as the culprit, because its effects would have whittled away at dinosaurs and other species over time.

“Despite evidence for relatively active volcanism in the Deccan Traps at the time, marine and land ecosystems showed only minor changes within the 500,000 years before the time of the KT extinction,” the scientists said.

“Computer models and observational data suggest that the release of gases such as sulphur into the atmosphere after each volcanic eruption… would have had a short-lived effect on the planet and would not cause enough damage to create a rapid mass extinction of land and marine species.”

The Chicxulub asteroid, on the other hand, could very well have made short shrift of dinosaurs, pterosaurs and other species, the scientists said.

The impact of the large asteroid would have “triggered large-scale fires, earthquakes measuring more than 10 on the Richter scale, and continental landslides which created tsunamis,” said Joanna Morgan, a lecturer in geophysics at Imperial College, London and co-author of the study.

The asteroid hit Earth 20 times faster than a speeding bullet and exploded into a deadly mix of hot rock and gas which would have “grilled any living creature in the immediate vicinity that couldn’t find shelter,” said Gareth Collins, a research fellow at Imperial College.

“The final nail in the coffin for the dinosaurs happened when blasted material was ejected at high velocity into the atmosphere,” shrouding the planet in darkness and causing a global winter that killed off species that “couldn’t adapt to this hellish environment,” added Morgan.

Another clue that the KT extinction was caused by a huge asteroid and not volcanic activity was evidence in geological records of “shocked” quartz in rock layers at KT boundary levels around the world.

Quartz is “shocked” when it is hit very quickly by a massive force — such as a 15-kilometer-wide asteroid traveling 20 times faster than a bullet.

The KT extinction marked the end of the 160-million-year reign of the dinosaurs and allowed mammals, and eventually humans, to become the dominant species on earth.


View the original article


Related Posts with Thumbnails

Posted in History, Science.

Tagged with , , .


0 Responses

Stay in touch with the conversation, subscribe to the RSS feed for comments on this post.



Some HTML is OK

or, reply to this post via trackback.

Support #altnews & keep Dark Politricks alive

Remember I told you over 5 years ago that they would be trying to shut down sites and YouTube channels that are not promoting the "Official" view. Well it's all happening now big time. Peoples Channels get no money from YouTube any more and Google is being fishy with their AdSense giving money for some clicks but not others. The time is here, it's not "Obama's Internet Cut Off Switch" it's "Trumps Sell Everyones Internet Dirty Laundry Garage Sale". This site must be on some list at GCHQ/NSA as my AdSense revenue which I rely on has gone down by a third. Either people are not helping out by visiting sponsors sanymore or I am being blackballed like many YouTube sites.

It's not just Google/YouTube defunding altenative chanels (mine was shut), but Facebook is also removing content, shutting pages, profiles and groups and removing funds from #altnews that way as well. I was recently kicked off FB and had a page "unpublished" with no reason given. If you don't know already all Facebooks Private Messages and Secret Groups are still analysed and checked for words related to drugs, sex, war etc against their own TOS. Personally I know there are undercover Irish police moving from group to group cloning peoples accounts and getting people booted. Worse than that I know some people in prison now for the content they had on their "secret private group". Use Telegrams secret chat mode to chat on, or if you prefer Wickr. If you really need to, buy a dumb phone with nothing for the NSA/GCHQ to hack into. Ensure it has no GPS tracking on it and that the battery can be removed. These are usually built for old people to get used to technology storing only a set of numbers to call. However they have no games, applications to install or other ways people can exploit the computer tracking device you carry round with you most of the day - your smart phone. If you are paranoid ensure that you can remove the battery when travelling around and do so to prevent GPS tracking or phone mast triangulation. Even with your phone in Flight mode or turned off, it can be turned on remotely and any features like front or back cameras, microphones and keylogging software can be installed to trace you.

So if your not supporting this site already which brings you news from the Left to the Right (really the same war mongering rubbish) then I could REALLY do with some..

Even if it's just £5 or tick the monthly subscription box and throw a few pound my way each month, it will be much appreciated. Read on to find out why.

Why?

Any support to keep this site would be appreciated. You could set up a monthly subscription for £2 like some people do or you could pay a one off donation as a gift.
I am not asking you to pay me for other people's articles, this is a clearing house as well as place to put my own views out into the world. I am asking for help to write more articles like my recent false flag gas attack to get WWIII started in Syria, and Trump away from Putin. Hopefully a few missiles won't mean a WikiLeaks release of that infamous video Trump apparently made in a Russian bedroom with Prostitutes. Also please note that this article was written just an hour after the papers came out, and I always come back and update them.

If you want to read JUST my own articles then use the top menu I have written hundreds of articles for this site and I host numerous amounts of material that has seen me the victim of hacks, DOS plus I have been kicked off multiple hosting companies, free blogging sites, and I have even had threats to cease and desist from the US armed forces. Therefore I have to pay for my own server which is NOT cheap. The more people who read these article on this site the more it costs me so some support would be much appreciated.

I have backups of removed reports shown, then taken down after pressure, that show collusion between nations and the media. I have the full redacted 28/29 pages from the 9.11 commission on the site which seems to have been forgotten about as we help Saudi Arabia bomb Yemeni kids hiding in the rubble with white phosphorus, an illegal weaapon. One that the Israeli's even used when they bombed the UN compound in Gaza during Operation Cast Lead. We complain about Syrian troops (US Controlled ISIS) using chemical weapons to kill "beautiful babies". I suppose all those babies we kill in Iraq, Yemen, Somalia and Syria are just not beautiful enough for Trumps beautiful baby ratio. Plus we kill about 100 times as many as ISIS or the Syrian army have managed by a factor of about 1000 to 1.

I also have a backup of the FOX News series that looked into Israeli connections to 9.11. Obviously FOX removed that as soon as AIPAC, ADL and the rest of the Hasbra brigade protested.

I also have a copy of the the original Liberal Democrats Freedom Bill which was quickly and quietly removed from their site once they enacted and replaced with some watered down rubbish instead once they got into power. No change to police tactics, protesting or our unfair extradition treaty with the USA but we did get a stop to being clamped on private land instead of the mny great ideas in the original.

So ANY support to keep this site running would be much appreciated! I don't have much money after leaving my job and it is a choice between shutting the server or selling the domain or paying a lot of money just so I can show this material.

Material like the FSB Bombings that put Putin in power or the Google no 1 spot when you search for protecting yourself from UK Police with "how to give a no comment interview". If you see any adverts that interest you then please visit them as it helps me without you even needing to give me any money. A few clicks per visit is all it takes to help keep the servers running and tag any tweets with alternative news from the mainstream with the #altnews hashtag I created to keep it alive!

However if you don't want to use the very obvious and cost free ways (to you) to help the site and keep me writing for it then please consider making a small donation. Especially if you have a few quid sitting in your PayPal account doing nothing useful. Why not do a monthly subscription for less money instead. Will you really notice £5 a month?



css.php