I don't remember the last time I tried to think about how many galaxies and stars there are, but god damn
Our galaxy, the Milky Way, is just one among these numerous galaxies, and it isn’t even considered a big galaxy. It stretches for 105,700 light-years in diameter and may contain at least 100 billion planets and around 400 billion stars.
Now, if we were to imagine how many planets and stars those 2 trillion galaxies might have, we would probably have to throw out our calculators. This is especially true since some galaxies are several times larger than our Milky Way Galaxy.
General Space Thread
Posted: Thu Mar 24, 2022 5:03 pm
by GORDON
I like the idea that we'll never even observe most galaxies, because they are so far away and the speed of light is too slow for the light of them to ever reach us before red shift.
General Space Thread
Posted: Thu Mar 24, 2022 5:14 pm
by TheCatt
GORDON wrote: ↑Thu Mar 24, 2022 5:03 pm
I like the idea that we'll never even observe most galaxies, because they are so far away and the speed of light is too slow for the light of them to ever reach us before red shift.
As someone who likes to see all the things, I do not.
General Space Thread
Posted: Thu Mar 24, 2022 8:24 pm
by Leisher
I like it for Sci-Fi stories. The abandoned Dyson sphere episode of ST:TNG(?) makes a lot of sense if you think about races that could have come and gone before we even knew their galaxies exist.
General Space Thread
Posted: Thu Mar 24, 2022 8:35 pm
by TheCatt
Leisher wrote: ↑Thu Mar 24, 2022 8:24 pm
I like it for Sci-Fi stories. The abandoned Dyson sphere episode of ST:TNG(?) makes a lot of sense if you think about races that could have come and gone before we even knew their galaxies exist.
I mean, billions of years (or more)... trillions of galaxies... ????? of stars + planets... extra-terrestrial life seems like a gimmie. But so far and distant we'll never know.
General Space Thread
Posted: Thu Mar 24, 2022 8:42 pm
by Leisher
TheCatt wrote: ↑Thu Mar 24, 2022 8:35 pm
extra-terrestrial life seems like a gimmie.
The brightest minds all seem to agree that you're an idiot if you don't think there's life out there, but yeah, who knows what we'll ever see or encounter. Our current understanding of space and our technology kind of guarantees that we're a long way away from finding out.
General Space Thread
Posted: Sat Apr 02, 2022 11:29 pm
by Leisher
Our solar system is in a bubble.
Smart girls are just immediately hotter. Also, interesting conversation.
That feels dumb. How many Gs are in that centrifuge? And they're going to build something with an engine that can withstand it, and fire up at the top of the parabola and kick into orbit? Doubt. This is way dumber than just building a long mag sled up the side of a mountain that could ramp up to speed more gradually.