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Random astronomy thoughts thread

Doctor Anaximander

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What a lonely existence to be a star located between galaxies, to be truly isolated from the rest of the cosmos. By our perception of the scale of the universe, even the distance between stars in a single galaxy seems colossal. Imagine the distance for a rogue star between Andromeda and The Milky Way.
 

Lex Sporis

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What a lonely existence to be a star located between galaxies, to be truly isolated from the rest of the cosmos. By our perception of the scale of the universe, even the distance between stars in a single galaxy seems colossal. Imagine the distance for a rogue star between Andromeda and The Milky Way.

I read this in Leonard Nemoy’s voice. I hope that’s cool with you.
 

Doctor Anaximander

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rogue planets are also a real thing too. Icy, homeless orbs hurtling through space. I wonder if any of these house life beneath their icy crusts.
 

Doctor Anaximander

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In fact I think they speculate now that half of all active stars are rogues or parts of smaller star clusters situated between galaxies. I wonder if a sentient being living on a planet orbiting one of these stars truly imagines their planet as being alone in the cosmos. I also wonder how astronomers on those worlds might come to different or similar conclusions to those of earth astronomers, if basing their findings on their own observations and their relations to the greater universe.
 

Totenkindly

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Basically spatial size/distances if the earth were scaled to the size of a small marble.

I think what blows me away is the sense of how quickly it STILL ratchets up to a galactic scale even when it is scaled down so much. I can grasp the first half or so of the video, then it all becomes too large again.

Human beings seem incapable of processing / envisioning very large numbers. Like, we kind of grasp a million, but after that point we don't really perceive scale well. Like, with all the economic discussions popularized in the news today, we have trouble grasping how much larger 1 billion is compared to 1 million. (I think the best scale I have seen that is understandable is that a million seconds is 11.5 days, and a billion seconds is 31.7 years.)

Space is so goddam vast especially when we start talking about the size of galaxies and the space between then. Even the orbits of our farthest ranging planetary bodies in our solar system is a bit difficult to grasp. What would life conditions even be at those locations? And any traveling between them would need some kind of way to circumvent the distance/time involved in such travel.
 
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