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Theory that life on Earth was seeded from outer space



 
 
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  #1  
Old January 22nd 08, 03:05 AM posted to alt.astronomy
DavidW
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Posts: 7
Default Theory that life on Earth was seeded from outer space

Hello,

I keep hearing about the idea that life on Earth was seeded by comets or some
such, most recently in a doco series on the History channel, but what they never
tell you is why such a theory should be favoured over life being home-grown.
It's a nice big planet here with lots of water and other stuff necessary for
life, and it's been just sitting here for billions of years, so why should life
have come from elsewhere?

The same program also suggested that Earth's water came from comets. That's a
lot of comets, and it didn't say how the comets got their water.

I can't help feeling that scientists want to shift these problems elsewhere so
they don't have to try to explain them.

David


  #2  
Old January 22nd 08, 06:59 AM posted to alt.astronomy
Saul Levy Saul Levy is offline
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Posts: 21,291
Default Theory that life on Earth was seeded from outer space

Seeding saves having to believe in evolution. Some simple molecules
may very well have come from space, but I don't believe that the
majority did. Eventually we'll know a lot more.

There have been a tremendous number of comets. Comets are dirty ice
balls. The water is left over from the formation of the Solar System.
Comets are assumed to be the source of the Earth's water. There is
water vapor in stars too.

Saul Levy


On Tue, 22 Jan 2008 14:05:35 +1100, "DavidW"
wrote:

Hello,

I keep hearing about the idea that life on Earth was seeded by comets or some
such, most recently in a doco series on the History channel, but what they never
tell you is why such a theory should be favoured over life being home-grown.
It's a nice big planet here with lots of water and other stuff necessary for
life, and it's been just sitting here for billions of years, so why should life
have come from elsewhere?

The same program also suggested that Earth's water came from comets. That's a
lot of comets, and it didn't say how the comets got their water.

I can't help feeling that scientists want to shift these problems elsewhere so
they don't have to try to explain them.

David

  #3  
Old January 22nd 08, 03:02 PM posted to alt.astronomy
Saul Levy Saul Levy is offline
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Posts: 21,291
Default Theory that life on Earth was seeded from outer space

Aw, too bad, Chu'k!

Saul Levy


On Tue, 22 Jan 2008 12:04:17 +0100, "Charles D. Bohne"
wrote:

On Mon, 21 Jan 2008 23:59:03 -0700, Saul Levy
wrote:

Some simple molecules
may very well have come from space, but I don't believe that the
majority did.


There ain't one single molecule that hasn't always been in space.
Reality doesn't care for your beliefs.
C.

  #4  
Old January 22nd 08, 10:00 PM posted to alt.astronomy
DavidW
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Posts: 7
Default Theory that life on Earth was seeded from outer space

"Saul Levy" wrote
Seeding saves having to believe in evolution.


Not really. They aren't saying orangutans came from space.

Some simple molecules
may very well have come from space, but I don't believe that the
majority did. Eventually we'll know a lot more.


I guess the biggest evolutionary problem is the formation of the first
self-reproducing molecule. Very simple compared with even a virus, but still
tremendously complex I imagine. This is the problem that I suspect scientists
want to wish away to some far away place where they don't have to explain it.

There have been a tremendous number of comets. Comets are dirty ice
balls. The water is left over from the formation of the Solar System.


In which case couldn't Earth have a got most of its water during its formation?

Comets are assumed to be the source of the Earth's water. There is
water vapor in stars too.


So, would Mars have received a similar quantity of water from comets?


  #5  
Old January 22nd 08, 11:16 PM posted to alt.astronomy
G=EMC^2 Glazier[_1_]
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Posts: 10,860
Default Theory that life on Earth was seeded from outer space

HiC Darla seeded the Earth about 2 million years ago. It its the
format to Sunbeam's "Stepping Stone Novel" Bert

  #6  
Old January 23rd 08, 12:32 AM posted to alt.astronomy
Saul Levy Saul Levy is offline
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Posts: 21,291
Default Theory that life on Earth was seeded from outer space

Simpler life may have come from space.

Earth did get some water early on. Exactly how much came later after
formation is a good question. Comets were part of the formation too.
I'd assume Mars got a lot of water that way too. This assumes the
primordal cloud was seeded uniformly with water. It could have gotten
concentrated somehow. The details are unknown.

Saul Levy


On Wed, 23 Jan 2008 09:00:20 +1100, "DavidW"
wrote:

"Saul Levy" wrote
Seeding saves having to believe in evolution.


Not really. They aren't saying orangutans came from space.

Some simple molecules
may very well have come from space, but I don't believe that the
majority did. Eventually we'll know a lot more.


I guess the biggest evolutionary problem is the formation of the first
self-reproducing molecule. Very simple compared with even a virus, but still
tremendously complex I imagine. This is the problem that I suspect scientists
want to wish away to some far away place where they don't have to explain it.

There have been a tremendous number of comets. Comets are dirty ice
balls. The water is left over from the formation of the Solar System.


In which case couldn't Earth have a got most of its water during its formation?

Comets are assumed to be the source of the Earth's water. There is
water vapor in stars too.


So, would Mars have received a similar quantity of water from comets?

  #7  
Old January 23rd 08, 12:33 AM posted to alt.astronomy
Saul Levy Saul Levy is offline
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First recorded activity by SpaceBanter: Jul 2006
Posts: 21,291
Default Theory that life on Earth was seeded from outer space

Too bad Darla's been lying about the whole thing, BEERTbrain! lmao!

Saul Levy


On Tue, 22 Jan 2008 18:16:36 -0500, (G=EMC^2
Glazier) wrote:

HiC Darla seeded the Earth about 2 million years ago. It its the
format to Sunbeam's "Stepping Stone Novel" Bert

  #8  
Old January 23rd 08, 05:24 PM posted to alt.astronomy
Hagar[_1_]
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Posts: 1,309
Default Theory that life on Earth was seeded from outer space


"DavidW" wrote in message
...
"Saul Levy" wrote
Seeding saves having to believe in evolution.


Not really. They aren't saying orangutans came from space.

Some simple molecules
may very well have come from space, but I don't believe that the
majority did. Eventually we'll know a lot more.


I guess the biggest evolutionary problem is the formation of the first
self-reproducing molecule. Very simple compared with even a virus, but
still tremendously complex I imagine. This is the problem that I suspect
scientists want to wish away to some far away place where they don't have
to explain it.

There have been a tremendous number of comets. Comets are dirty ice
balls. The water is left over from the formation of the Solar System.


In which case couldn't Earth have a got most of its water during its
formation?

Comets are assumed to be the source of the Earth's water. There is
water vapor in stars too.


So, would Mars have received a similar quantity of water from comets?


In all likelihood Mars had proportionally the same amount of water on its
surface as Earth, at one time in its early history, as evidenced by the dry
river-like gullies and continental shelf features we can see today. One can
safely assume that it came from the same source as Earth's water. We just
don't exactly know the nature of the catalyst which caused it to disappear,
save for some ice at the polar regions and possibly a large amount in
underground aquifers.


  #9  
Old January 23rd 08, 05:57 PM posted to alt.astronomy
BradGuth
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Posts: 21,544
Default Theory that life on Earth was seeded from outer space

On Jan 21, 7:05 pm, "DavidW" wrote:
Hello,

I keep hearing about the idea that life on Earth was seeded by comets or some
such, most recently in a doco series on the History channel, but what they never
tell you is why such a theory should be favoured over life being home-grown.
It's a nice big planet here with lots of water and other stuff necessary for
life, and it's been just sitting here for billions of years, so why should life
have come from elsewhere?

The same program also suggested that Earth's water came from comets. That's a
lot of comets, and it didn't say how the comets got their water.

I can't help feeling that scientists want to shift these problems elsewhere so
they don't have to try to explain them.

David


Most of Earth's life is likely ET, via panspermia and/or via
intelligent design.

What part of the human species looks as though entirely terrestrial?

Are we not missing a considerable number of nifty DNA codes?
- Brad Guth
  #10  
Old January 23rd 08, 05:59 PM posted to alt.astronomy
BradGuth
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Posts: 21,544
Default Theory that life on Earth was seeded from outer space

On Jan 21, 10:59 pm, Saul Levy wrote:
Seeding saves having to believe in evolution.


No, it does not. It just gives us the options of whatever those vast
cosmic alternatives have to offer.
- Brad Guth
 




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