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Secrets of life on early Earth — and other planets — may be trapped in ancient gas bubbles

[Image: stromalite.png&w=480]
The layers on this 2.7-billion-year-old rock, a stromatolite from Western Australia, show evidence of single-celled, photosynthetic life on the shore of a large lake. The new result suggests that this microbial life thrived despite a thin atmosphere. (Roger Buick/University of Washington)
Some 2.7 billion years ago, lava started oozing out of a crack in the planet in what is now Australia. It spread and spread, flowing out in every direction until it hit seawater. Then, swiftly, it hardened into rock.
As the lava surged upward, gases that had dissolved under the high pressures of Earth's interior expanded and formed bubbles — much the way a bottle of soda fizzes when you unscrew the cap. Those bubbles were frozen in time when the lava that contained them solidified.
Fast-forward millions upon million of years, and those bubbles are some of the best clues scientists have about what early Earth was like. It's pretty different from how we had imagined it.
That's according to a study published this week in the journal Nature Geoscience, which found that the atmosphere 2.7 billion years ago was half as thick as it is today. The find comes as a surprise to scientists, who had always assumed the opposite was true. The sun was 20 percent weaker in the early days of Earth, so researchers thought that a thick atmosphere worked like a down comforter to trap sunlight and keep the planet warm enough to sustain life.

https://www.washingtonpost.com/news/speaking-of-science/wp/2016/05/10/secrets-of-life-on-early-earth-and-other-planets-may-be-trapped-in-ancient-gas-bubbles/

~mc~

you find the weirdest stories Chuckle
(05-10-2016, 08:09 PM)~mc~ Wrote: [ -> ]you find the weirdest stories Chuckle

Im comfortable on the fringes

Rimshot

~mc~

(05-10-2016, 08:20 PM)Sheeple People Eater Wrote: [ -> ]
(05-10-2016, 08:09 PM)~mc~ Wrote: [ -> ]you find the weirdest stories Chuckle

Im comfortable on the fringes

Rimshot

caveman farts Chuckle

I am so immature!
(05-10-2016, 08:21 PM)~mc~ Wrote: [ -> ]
(05-10-2016, 08:20 PM)Sheeple People Eater Wrote: [ -> ]
(05-10-2016, 08:09 PM)~mc~ Wrote: [ -> ]you find the weirdest stories Chuckle

Im comfortable on the fringes

Rimshot

caveman farts  Chuckle

I am so  immature!

Cave farts don't go away... 







Don't put cavebaby in the corner!

~mc~

(05-10-2016, 08:37 PM)Sheeple People Eater Wrote: [ -> ]
(05-10-2016, 08:21 PM)~mc~ Wrote: [ -> ]
(05-10-2016, 08:20 PM)Sheeple People Eater Wrote: [ -> ]
(05-10-2016, 08:09 PM)~mc~ Wrote: [ -> ]you find the weirdest stories Chuckle

Im comfortable on the fringes

Rimshot

caveman farts  Chuckle

I am so  immature!

Cave farts don't go away... 







Don't put cavebaby in the corner!

you're just as immature as me Chuckle
(05-10-2016, 08:38 PM)~mc~ Wrote: [ -> ]
(05-10-2016, 08:37 PM)Sheeple People Eater Wrote: [ -> ]
(05-10-2016, 08:21 PM)~mc~ Wrote: [ -> ]
(05-10-2016, 08:20 PM)Sheeple People Eater Wrote: [ -> ]
(05-10-2016, 08:09 PM)~mc~ Wrote: [ -> ]you find the weirdest stories Chuckle

Im comfortable on the fringes

Rimshot

caveman farts  Chuckle

I am so  immature!

Cave farts don't go away... 







Don't put cavebaby in the corner!

you're just as immature as me  Chuckle

Uhh you think? I made up the caveman farts part.  Chuckle

~mc~

(05-10-2016, 08:45 PM)Sheeple People Eater Wrote: [ -> ]
(05-10-2016, 08:38 PM)~mc~ Wrote: [ -> ]
(05-10-2016, 08:37 PM)Sheeple People Eater Wrote: [ -> ]
(05-10-2016, 08:21 PM)~mc~ Wrote: [ -> ]
(05-10-2016, 08:20 PM)Sheeple People Eater Wrote: [ -> ]Im comfortable on the fringes

Rimshot

caveman farts  Chuckle

I am so  immature!

Cave farts don't go away... 







Don't put cavebaby in the corner!

you're just as immature as me  Chuckle

Uhh you think? I made up the caveman farts part.  Chuckle
Facepalm I know

;)
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