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Asteroid that killed the Dinosaurs might have sent life to other worlds!

RichAllen
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Asteroid that killed the Dinosaurs might have sent life to other worlds!

http://www.bbc.co.uk/news/science-environment-25201572#FBM318062
According to a link I've just found on Facebook, the Asteroid which Millions of years ago wiped out the Dinosaurs on Earth could've created life on Planets such as Mars and Jupiter.
Interesting thought,.
Anyone care to comment?
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Re: Asteroid that killed the Dinosaurs might have sent life to other worlds!

This is the worrying sentence.
' And bacterial spores can be revived after hundreds of millions of years in a dormant state. '
Does not bode well. Sad
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Re: Asteroid that killed the Dinosaurs might have sent life to other worlds!

That's how life got here in the first place according to one theory ......but where from Undecided
I've heard more than one eminent scientist say that we could easily be Martians.
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nanotm
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Re: Asteroid that killed the Dinosaurs might have sent life to other worlds!

there was a paper released back in the 60's that got thoroughly trounced which suggested far from originating on this planet humans were transported here as our home world suffered from some catastrophe or other, personally I think its a bit of sci-fi nuttery but its certainly lead to some interesting films being made.
as for asteroids bouncing off multiple planets, its not possible, its possible for them to  be created by a planet sized object being destroyed and thus transporting life forms from origin to impact point, its possible for an asteroid of sufficient size and speed to glance through the atmosphere of a planet without succumbing to the planets gravity field and leaving where by it could pick up a few dormant airborne spores but its unlikely something that had sufficient mass to impact hard enough to cause an extinction level event would be able to do so, its far more likely something with such size and mass would be creating its own gravity field (which is why planetary gravity doesn't affect it very much) and would continue bouncing round the galaxy ad infinitum.
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Re: Asteroid that killed the Dinosaurs might have sent life to other worlds!

so.... not being a scientist.... more of a logical thinker...
the size of the asteroid that crashed into earth.........?
1. it would need to be big enough to shift the earth ( as we know it, mr. spock ). out of an orbit, into its present orbit.
2.  this implies that the "asteroid" was much larger and heavier than earth, and would need to have such an impact to move the earths orbit considerably, to alter the climatic conditions the Dinosaurs "enjoyed".
3.  if this asteroid was "so" big, and it did hit the earth, where is the "dent" it made?
4. How come the Dinosaurs were breathing the same air constituents, as we do today... i.e. oxygen... if this planet earth had been moved in its orbit...  it was "conveneient" for it to remain in its present form, without damage.  Dinosaurs were mainly vegetarian in diet.and there were plenty of trees around for them to eat.... until, they procreated in sufficient numbers to devour their food source, which is a more likely reason for their demise.
The so-called "ice age" does not cover the change of orbit theory, as the present " global warming" theorists have proved .... the earth has just "warmed up " over a very long period of time.
I am sure that this could be proved about other planets in our system...
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Re: Asteroid that killed the Dinosaurs might have sent life to other worlds!

Hmm The earth warming up each year ... Muhahahahahahahaha to energy firms!!!!!
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Re: Asteroid that killed the Dinosaurs might have sent life to other worlds!

It all started with the cavemen, lighting fires......  Cheesy
the more cavemen....... the more fires......
the more fires..... the more the earth warms up....  Roll eyes  simples...  Cheesy
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Re: Asteroid that killed the Dinosaurs might have sent life to other worlds!

Quote from: nanotm
there was a paper released back in the 60's that got thoroughly trounced which suggested far from originating on this planet humans were transported here as our home world suffered from some catastrophe or other, personally I think its a bit of sci-fi nuttery but its certainly lead to some interesting films being made.

Martians don't have to have two arms and two legs, they could just as easily be single cell entities transported in the way of this discussion.
I personally don't believe planet Earth is the only location for life to exist and there has to be more in the vastness of the Universe.
To paraphrase a line from a film "if there isn't, it seems an awful waste of space"
Don't knock Sci-Fi, it predicted the Earth orbit communications satellite amongst many other things.
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Re: Asteroid that killed the Dinosaurs might have sent life to other worlds!

Quote from: shutter
so.... not being a scientist.... more of a logical thinker...
the size of the asteroid that crashed into earth.........?
1. it would need to be big enough to shift the earth ( as we know it, mr. spock ). out of an orbit, into its present orbit.
2.  this implies that the "asteroid" was much larger and heavier than earth, and would need to have such an impact to move the earths orbit considerably, to alter the climatic conditions the Dinosaurs "enjoyed".
3.  if this asteroid was "so" big, and it did hit the earth, where is the "dent" it made?

unless it was just travelling fast enough to do that, there are several examples of impact craters across the earths surface any one of which could of caused an extinction level event (seismic waves) without actually changing very much, we already know for certain there was an event which caused massive fracturing of continents which split the vast land masses currently known as Africa and south America from each other, we know there is a giant trench in the ocean caused by a meteor (Marianas) and we know the explosive force of extremely small meteors (the size of a football) from recent events in Russia, we even know the location of 3 super massive craters caused by meteor impacts, and that such impacts were from lumps of rock no larger than a mini cooper.....
but that aside the rest of your assumptions are clearly on the right track Smiley
global warming or cooling is caused by elliptical wobble during the earths rotation of the sun, an attitude change of half a degree could easily cause several degrees of temperature change, so called green house cases work as both insulator and blocker, some of the heat generated planet side cant escape but a the same time heat from the sun cant get in either.....its one of those facts that's been overlooked by people on a mission to create easy money schemes like carbon capture and "green taxes", if they were really worried about these things they would of created a sustainable eco policy and taxed everything that didn't comply at an increasing rate so companies were forced to change course to preserve the natural world instead of continuing the wonton destruction of the planet .......

@strat
if the earth was the only place where sentient life occurred it would be a miracle, I rather suspect there will be multiple life forms and at some point in the future when interstellar travel becomes viable (as in it takes weeks to travel whole light years) instead of the current no go status then we will eventually find were are the most backwards planet in the galaxy......
just because your paranoid doesn't mean they aren't out to get you
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Re: Asteroid that killed the Dinosaurs might have sent life to other worlds!

Those more advanced civilisations will probably be run by scientists rather than politicians Wink
But that's another subject.
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Re: Asteroid that killed the Dinosaurs might have sent life to other worlds!

naw they will be run by soldiers because one universal truth is no burocrat can make a decision and no administrator can ever lead,
but of course scientists can be soldiers so maybe we will both be right, who knows in a few thousand years someone can look it up and beam an answer back in time to let us know after all if you can utilise time dilation effects through gravimetric density fields to travel across the universe you can bloddy well send messages back in time  Crazy
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RichAllen
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Re: Asteroid that killed the Dinosaurs might have sent life to other worlds!

Anyone who thinks there's HG Wells type Martians living on Mars is clearly living in Cuckoo Land IMO, even if there is anything there it'll only be plants or something.
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Re: Asteroid that killed the Dinosaurs might have sent life to other worlds!

Thankfully I don't live in Cuckoo land....it's full of politicians and investment bankers.
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Re: Asteroid that killed the Dinosaurs might have sent life to other worlds!

Quote from: Strat
That's how life got here in the first place according to one theory ......but where from Undecided

Well probably other stars and planets that have ceased to exist / exploded over the past 13 billion years. Gold is created at the heart of stars and thats where it comes from - stars that have exploded during the existence of the universe and scattered their remains in forming planets / solar systems etc.
Earth isn't even the original planet in this orbit anyway. A couple of years back they tested a theory that another stray planet entered our solar system and smashed into our original planet here. Both destroyed each other but the sheer mass and gravity resulted in the earth being formed from the debris.
Both of these were explained on TV by Hawking himself. Leading scientists also explained the planet crash theory and showed how they had tested it etc. Earth is infact two planets plus ingredients from various other places in the cosmos.
I think the real question is what even caused the big bang to happen? Nothing but a vast nothingness and then something just explodes? - seriously?
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Re: Asteroid that killed the Dinosaurs might have sent life to other worlds!

It allegedly wasn't even a point source big bang but occurred everywhere at the same time which is why everything in the universe is moving away from everything else......gives me a headache Huh
Edit: Typo...thanks Gabe Tongue Wink
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