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A measure of biodiversity, and changes in the number of genera that exist at any given time, to identify the most major extinction events in the past 500 million years. They are not periodic, and only the most recent one has a known cause.At least five extraterrestrial scenarios are capable of wiping humanity out.
What we perceive as a gamma ray burst is now known to have at least one identified cause: in merging neutron stars. If one of the jets from these mergers is pointed at Earth, and is close enough , it could destroy the ozone layer, which would lead to humanity's demise.If one occurred within 6,000 light-years of Earth, it would destroy our ozone layer, causing a mass extinction.
An optical composite/mosaic of the Crab Nebula as taken with the Hubble Space Telescope. The different colors correspond to different elements, and reveal the presence of hydrogen, oxygen, silicon and more, all segregated by mass. If the Earth were located within this nebula, which extends about 10 light-years across at present, it could cause an extinction-level event for humanity.: these have affected Earth many times, but we have endured without significant harm.
Transformers please dont invade
Please add this one: if everyone used contraceptives starting today for the next 100 years, humanity would meet its demise.
whobedatPR I am slightly disappointed with just 5 . I had higher hopes
Pas comme dans la guerre des monde ou comme les envahisseurs , ils ne vont pas se fatiguaient Ils vont juste envoyer des virus ultra mortel Je suis sur qu'ils nous observent de l'a haut , et ils doivent se dire c'est quoi ce monde de fou
If you let your excitement get to this level it is not good. If you are depressed find something fun to relieve the pressures.
This article freaked me tf out. Thanks. 😬
28 you are making me mad...
Did you know Michael Jackson owns Venus?
Most of these beat a realDonaldTrump Presidency.
Thanks for ruining any chance of a peaceful sleep tonight! 😅
I welcome all of them
Okay....
Lovely bedtime reading. Thanks 🤗
Umm.. Read this and get really depressed about something we have absolutely no control over or skip it and continue on, blissfully unaware of our impending doom. *skipped
Well, just make it quick.
so, do I pay my house insurance or not?
Don't tease us, Forbes.
scenarios not facts just saying
At this point it wouldn’t be a bad thing.
6. A meteor with a deadly, and unable to be understood/fought disease. If we are going to depress ourselves, let's include them all!
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