So. the Big Bang looks to not be a fact. Now what?

Wouldn't that be a solid?

Or at least have SOME matter in it?

Are you referring to dark matter or what? I don't understand.

 

Actually, the way I've seen it explained things aren't really moving away from each other. The things (galaxies) aren't moving they just appear to be, rather space itself is expanding. You know, the balloon with the dots on it? (only the balloon is 4 dimensional and one of the dimensions is time)

 

I agree.

I think the situation is that the expansion of the universe is being overcome by gravity in small regions of the universe - like inside our galaxy and the galaxy cluster we are part of.

So, Andromeda galaxy will collide with the Milky Way.

But, the overall universe continues to expand at an increasing rate. And galaxies outside our cluster are departing at an increasing rate, as gravity isn't strong enough over the distance between galaxy clusters that would be needed to counter expansion.

 

Which is what many look at in the data collected from the CMB.

 

And nobody says that. Simple that there is no way that something can be known before certain events.

For example, we now know we are not actually on the "original Earth". Earth Mark I was destroyed around 4.5 gya. We can make some suppositions about both that and the object that destroyed it, but there is absolutely no way to "know" what was there before. Other than it is actually believed to have been rocky, and actually rather poor in iron.

And time actually does some really weird things in the presence of massive amounts of matter. And there is no "collection" of matter larger than the singularity that spawned the Universe. And we already know that time dilation is something that affects things around a black hole. And that would only be magnified even more when all of matter was in a single location.

The early universe may have been like that for a fraction of a zeptosecond, or for Trillions of years. It is impossible to look beyond that point, because of how that much matter in one location so strongly affected the fabric of space-time that it is impossible to look beyond it. And in fact "time" as we understand it largely has no meaning.

 

Now waitaminit. Didn't Penrose prove that Time DOES exist?

 

I am not saying that it does not exist. But it is known that it behaves very differently under strong gravity. Just look up the effects of spaghettification to see how that would work.

Quite literally if somebody "falls into" a black hole, they both are pulled apart, and the dilation of time is so great that they will quite literally will never reach the center.

Now multiply that by all the mass of the universe into a single singularity.

 

OK, we can say that, but the fact remains that most galaxies are farther apart from each other today than they were yesterday so consequently most folks will call that "moving apart". In general that really is the case, though galaxies have a habit of doing a lot of moving around on their own too.

Our next door neighbor the Andromeda Galaxy is moving towards us at about 70 miles per second and in just about 5B years it will smash into the Milky Way and make a big miss. The earth & will probably be gone by then, and the sun will be used up, but still it should be spectacular.

 

.

I'll post photos here.

 

"Crash" is not quite right, as like out own galaxy it is mostly empty space. But the two will probably merge after several passes.

And the earth will still be around, but a burned cinder as Sol will be in it's Red Giant phase at that time. And it will be in that phase for about a billion years before it becomes a white dwarf. By that time the two galaxies will have largely merged, but there is also a chance that our sun might get thrown out into the intergalactic void, or become a part of a satellite galaxy like the Magellanic Cloud.

But we have a lot of images now, of both two galaxies colliding as well as the aftermath when that happens.



Odds are, it would likely be barely noticed as it would take place over such a long timeframe.

 

What's neat is the fact that while galaxies are large compared to the distance between them (hence they run into each other a lot), stars are very small compared to the distance between them so the almost never run into each other. We can have 2 galaxies collide w/o any stars ever bumping. Only their gravatational fields.

 

Unless The Q enter Civil War, of course.

 

LOL!!!! The Q were my favorite, they've come back in "Picard" or am I wrong?

 

Have you watched any of it? We are almost to the end of season one. The story is interesting, but the pace is glacial. So, we have to commit to watching. Usually involves pot.

 

There are sooo many terrific StarTrek spinoffs that Picard's been waiting in line for me. On your recommendation I just might give it a try...

 

Glacial pace… keep it in mind. Have you delved into Lower Decks, yet? Pretty funny. DS9 was, IMO, the best in class.

 

Lower Decks was fun the time we saw an episode and we'll probably get back to that soon after we get our fill of Discovery. So many spinoffs, so little time.

 

I haven't been able to get into Discovery. I thought the first episode was slow and boring. I'll give it another try, I'm sure.

A totally not Star Trek, trek show is The Orville. I think Seth is doing great with that show.

 

We went from the Orville to other stuff w/o seeing the entire season we were in. iirc they dropped scifi and got really heavy into topics that 2015 political faction viewers would love --global warming, a woman's right to choose, same sex marriage, and down w/ all religions but Atheism (the "un-religion").

At least Discovery, Picard, Lower Decks, and Strange Worlds are all still sci-fi.

 

Sci-fi has included psychology, sociology, government, morality, etc., for a long time.

What would you like to see changed/added to make you happier about religion in sci-fi shows?

 

I heard Discovery was nothing but SJW crap. Not true?

 

What we're watching is going downhill, the bad guy is (of course) a white adult male, two leads are gay male lovers that are constantly kissing each other. One died (so I hoped they'd put it aside) but he came back from the dead and they're smooching as ever.

Maybe we're watch another couple episodes but it's getting old. Like, I can enjoy left-faction rants as much as the next guy but what happened to sci-fi?

 

Do you notice that men are never right anymore? Not one commercial in recent memory has the woman wrong and the man, right.

 

Didn't use to be that way, tho I can remember tv commercials from the 1950's.

Anyway I can blow that off. The reason is that no matter what all the women's lib stuff says, men make the money and the women spend it. It's this purchasing choice power the women have that makes advertisers pander to the womenright/menwrong line. Not only that, but when I buy stock in a company I go for the company that follows this feminist line because it shows that those folks know which way the wind blows. So I guess that makes me as guilty as the worst of 'em right?

 

Men started (according to Hollywood,) getting dumb in the 80s; at least in Sitcoms. Dad was the doof and mom was the serious person.