Comet Provides New Clues to Origins of Earth's Oceans

https://www.jpl.nasa.gov/news/news.p...ily-20190523-2

"The mystery of why Earth has so much water, allowing our "blue marble" to support an astounding array of life, is clearer with new research into comets. Comets are like snowballs of rock, dust, ice, and other frozen chemicals that vaporize as they get closer to the Sun, producing the tails seen in images. A new study reveals that the water in many comets may share a common origin with Earth's oceans, reinforcing the idea that comets played a key role in bringing water to our planet billions of years ago."

"palsing" wrote in message
...

https://www.jpl.nasa.gov/news/news.p...ily-20190523-2

"The mystery of why Earth has so much water, allowing our "blue marble" to
support an astounding array of life, is clearer with new research into
comets. Comets are like snowballs of rock, dust, ice, and other frozen
chemicals that vaporize as they get closer to the Sun, producing the tails
seen in images. A new study reveals that the water in many comets may share
a common origin with Earth's oceans, reinforcing the idea that comets played
a key role in bringing water to our planet billions of years ago."


*** Oh boy, Palsing, you're a real crackerjack when it comes to Astronomy.
The Oort Cloud is populated almost entirely by icy objects. Every now and
then one gets bumped from it orbit and does indeed become a comet and the
ice is gradually turned into vapor as it approaches the Sun. BTW, that's
how Mercury, Venus and Mars got their water. Mercury's was vaporized by its
proximity to old Sol, Venus is shrouded partially by its steam and Mars lost
its water due to some cataclysmic event that exposed its surface to the Sun
and its surface water evaporated.
If you have any more questions, just ask.

On Friday, May 24, 2019 at 9:46:04 AM UTC-5, palsing wrote:
https://www.jpl.nasa.gov/news/news.p...ily-20190523-2

"The mystery of why Earth has so much water, allowing our "blue marble" to support an astounding array of life, is clearer with new research into comets. Comets are like snowballs of rock, dust, ice, and other frozen chemicals that vaporize as they get closer to the Sun, producing the tails seen in images. A new study reveals that the water in many comets may share a common origin with Earth's oceans, reinforcing the idea that comets played a key role in bringing water to our planet billions of years ago."

Comets are dirty snowballs. They don't have enough water to fill up the Earth's oceans.

Hagar, in this particular post I agree with everything that you have stated. How does the article I referenced disagree with what you have just stated?

And what, Mark, are snowballs made of, if not water?

On Friday, May 24, 2019 at 11:49:38 AM UTC-5, palsing wrote:
And what, Mark, are snowballs made of, if not water?

Water and dirt but not near enough water to fill up an ocean.

On Friday, May 24, 2019 at 11:35:59 AM UTC-7, Mark Earnest wrote:
On Friday, May 24, 2019 at 11:49:38 AM UTC-5, palsing wrote:
And what, Mark, are snowballs made of, if not water?

Water and dirt but not near enough water to fill up an ocean.

So, Mark, how many comets would it take to fill up an ocean? Let's assume for this exercise that each comet is spherical and is 10 miles in diameter. Show your work.

As Hagar has already pointed out, the Oort Cloud is the likely source of many comets. How many, you ask? See this...

https://en.wikipedia.org/wiki/Oort_cloud

.... and read therein...

"The outer Oort cloud may have trillions of objects larger than 1 km (0.62 mi), and billions with absolute magnitudes brighter than 11 (corresponding to approximately 20-kilometre (12 mi) diameter), with neighboring objects tens of millions of kilometres apart. Its total mass is not known, but, assuming that Halley's Comet is a suitable prototype for comets within the outer Oort cloud, roughly the combined mass is 3×1025 kilograms (6.6×1025 lb), or five times that of Earth."

Read again "5 times that [the mass] of the Earth"

Does that sound like enough water?

On Friday, May 24, 2019 at 1:55:29 PM UTC-5, palsing wrote:
On Friday, May 24, 2019 at 11:35:59 AM UTC-7, Mark Earnest wrote:
On Friday, May 24, 2019 at 11:49:38 AM UTC-5, palsing wrote:
And what, Mark, are snowballs made of, if not water?

Water and dirt but not near enough water to fill up an ocean.

So, Mark, how many comets would it take to fill up an ocean? Let's assume for this exercise that each comet is spherical and is 10 miles in diameter.. Show your work.

As Hagar has already pointed out, the Oort Cloud is the likely source of many comets. How many, you ask? See this...

https://en.wikipedia.org/wiki/Oort_cloud

... and read therein...

"The outer Oort cloud may have trillions of objects larger than 1 km (0.62 mi), and billions with absolute magnitudes brighter than 11 (corresponding to approximately 20-kilometre (12 mi) diameter), with neighboring objects tens of millions of kilometres apart. Its total mass is not known, but, assuming that Halley's Comet is a suitable prototype for comets within the outer Oort cloud, roughly the combined mass is 3×1025 kilograms (6.6×1025 lb), or five times that of Earth."

Read again "5 times that [the mass] of the Earth"

Does that sound like enough water?

The water may indeed be out there in space, and it probably is, but the

likelihood of it reaching the insignificant speck in space known to us as the

Earth is practically zero. You have to think on a cosmic scale to be able to

figure these things out.

"palsing" wrote in message
...

Hagar, in this particular post I agree with everything that you have stated.
How does the article I referenced disagree with what you have just stated?


*** It just amazes me that you think of yourself as so brilliant and the
rest of us as so mentally starved, that you had to dredge up astronomical
facts that every high schooler should know and present them as the latest
and greatest in Palsing discoveries of the decade, you, the expert on
anything and everything in the realm of physics astronomy climate and
egomania.

On Friday, May 24, 2019 at 3:28:54 PM UTC-5, Hägar wrote:
"palsing" wrote in message


Hagar, in this particular post I agree with everything that you have stated.
How does the article I referenced disagree with what you have just stated?


*** It just amazes me that you think of yourself as so brilliant and the
rest of us as so mentally starved, that you had to dredge up astronomical
facts that every high schooler should know and present them as the latest
and greatest in Palsing discoveries of the decade, you, the expert on
anything and everything in the realm of physics astronomy climate and
egomania.

Everyone thinks they see everything correctly including you.