Coalition of the Confused

Hosted by Jenifer (Zarknorph)

Commonwealth refugees swilling chardonnay while awaiting the Zombie Apocalypse.

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News from the Cosmos   Science

Started 10/6/18 by Jenifer (Zarknorph); 10321 views.
Jenifer (Zarknorph)
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From: Jenifer (Zarknorph)

Sep-15

BerrySteph said:

I think its very possible that life develops quite easily - but it never arrives at our kind of complexity because the conditions have never, ever been right for it - great stability but just enough chaos to force development.

Life is very tough, yes.

But our solar system is in the boondocks of one of the spiral arms.  However our entire system revolves around that arm and every 50 million years we head into a more populated area.

Coincidentally, every 50 million years sees a mass extinction on Earth.

Also, every million years sees our system influenced by gravitational pulls from fly-by stars that tug at objects in the Ort cloud and slingshot them in towards our sun.

Last one was about... one million years ago.

BerrySteph

From: BerrySteph

Sep-15

Jenifer (Zarknorph) said:

our solar system is in the boondocks of one of the spiral arms.  However our entire system revolves around that arm and every 50 million years we head into a more populated area. Coincidentally, every 50 million years sees a mass extinction on Earth. Also, every million years sees our system influenced by gravitational pulls from fly-by stars that tug at objects in the Ort cloud and slingshot them in towards our sun. Last one was about... one million years ago.

I'd have to read up on that to make sense of it.

The extinctions don't really behave like that.

The blue graph shows the apparent percentage (not the absolute number) of marine animal genera becoming extinct during any given time interval. It does not represent all marine species, just those that are readily fossilized. The labels of the traditional "Big Five" extinction events and the more recently recognised End-Capitanian extinction event are clickable hyperlinks. (source and image info)  https://en.wikipedia.org/wiki/Extinction_event

In reply toRe: msg 70
Jenifer (Zarknorph)
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From: Jenifer (Zarknorph)

Sep-20

Di (amina046)

From: Di (amina046)

Sep-21

OMG you now scrambled my brain! I feel as if it went thru a blender to make a smoothie!

Jenifer (Zarknorph)
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From: Jenifer (Zarknorph)

Sep-22

I'm firmly on "Team big Crunch".

In the end, all that will be left are black holes.

That HAS to tip the balance of gravitational pull.

In reply toRe: msg 75
Jenifer (Zarknorph)
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From: Jenifer (Zarknorph)

Sep-23

That sounded a tad ominous...

bml00

From: bml00

Sep-23

I have often remarked to my Wife after having visiting my MIL that she was not of this World

In reply toRe: msg 77
Jenifer (Zarknorph)
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From: Jenifer (Zarknorph)

Sep-29

bml00

From: bml00

Sep-29

We know so much - but so little of the Solar System , we are not alone that I am sure of .

BM

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