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What If There Were Two Suns, Thus No Nights?

rhinefire

rhinefire

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I believe if there were not true dark nights man would be a different creature. Our behavior has since day one has been a product in part of the darkness.
 
rhinefire said:
I believe if there were not true dark nights man would be a different creature. Our behavior has since day one has been a product in part of the darkness.
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Well depending on the size of the two suns.....we could have a longer year than 365 days. Depending how far away it could even be shorter.

It would still be possible IMO to have Night if there was a Moon.
 
rhinefire said:
I believe if there were not true dark nights man would be a different creature. Our behavior has since day one has been a product in part of the darkness.
Click to expand...

We would definitely have a lot more weeds in our yards, at least those of us who lived in green places not fried by the suns.
 
rhinefire said:
I believe if there were not true dark nights man would be a different creature. Our behavior has since day one has been a product in part of the darkness.
Click to expand...
Absolutely. Circadian rhythms are no requirement for success of life forms. I'm not aware of species that inhabit continuously lighted environments, but there's certainly thriving life in complete darkness: Deep sea clams, crabs, shrimps, anglerfish, etc.

If there were an abundance of continuously lighted environments, I think we'd see more species like swifts. I've read that common swifts and a few other select species of swifts never stop flying, except for breeding purposes. They go their entire lives in continuous flight and don't sleep like we or other mammals do. Essentially they fly up to extremely high altitudes and zone out for a bit.
 
rhinefire said:
I believe if there were not true dark nights man would be a different creature. Our behavior has since day one has been a product in part of the darkness.
Click to expand...

It would likely be a lot hotter.
 
If our system had binary suns, it's unlikely that our planet would sit perfectly between them. Most likely we would still have day and night, though the ratio might yield longer days and shorter nights.
 
rhinefire said:
I believe if there were not true dark nights man would be a different creature. Our behavior has since day one has been a product in part of the darkness.
Click to expand...

The moon has had a huge effect also. The tides that the moon causes has influenced evolution since the beginning of life.
 
SW_binary_sunset.png
 
rhinefire said:
I believe if there were not true dark nights man would be a different creature. Our behavior has since day one has been a product in part of the darkness.
Click to expand...

We would not be so afraid of the Dark, you mean? That would certainly kill a number of horror movies.
 
rhinefire said:
I believe if there were not true dark nights man would be a different creature. Our behavior has since day one has been a product in part of the darkness.
Click to expand...

Agreed. Nature, as we see it today, cycles between light and dark. It that were to suddenly change, we would likely die out. The Earth even uses the pull of the moon to extract value for the creatures that roam it. No moon, no man.
 
joG said:
We would not be so afraid of the Dark, you mean? That would certainly kill a number of horror movies.
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we would be even more afraid of the dark as it is something we experience less often.
 
We found a planet with two suns and no moon. Its Kepler 16B.....like the earth it still rotates around the suns. Uninhabitable.

th


th


Kepler3.jpg
 
ARealConservative said:
we would be even more afraid of the dark as it is something we experience less often.
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There is that. On the other hand, evolution would not have killed off all the would be ancestors that were not afraid of the dark.
 
joG said:
There is that. On the other hand, evolution would not have killed off all the would be ancestors that were not afraid of the dark.
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:2razz:

rsz_1caveman.jpg
 
rhinefire said:
I believe if there were not true dark nights man would be a different creature. Our behavior has since day one has been a product in part of the darkness.
Click to expand...
There are simply to many independent variables to make a generalized description of life-supporting planets in the Goldilocks zone of a binary solar-system.
 
iguanaman said:
The moon has had a huge effect also. The tides that the moon causes has influenced evolution since the beginning of life.
Click to expand...

That's right. The moon's gravitational effect has also slowed the rotation of the earth--when the first fishes appeared, there were about 400 days in a year. And 400 nights.
 
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