| Hafen von Schlockenberg | 14 Oct 2016 4:59 p.m. PST |
link So,how do.we get there? |
| JSchutt | 14 Oct 2016 5:37 p.m. PST |
I'm more concerned about them coming here first…. then again some insist they already have…. (my neighbor is somewhat short, has a big head, wears sunglasses all the time…and has a complexion problem) |
| Winston Smith | 14 Oct 2016 5:49 p.m. PST |
Maybe more?
And maybe galaxies are a little more massive than thought?
And maybe we don't need to invent "dark" this or that to make the equations come out right. |
| Hafen von Schlockenberg | 14 Oct 2016 6:18 p.m. PST |
Dave Barry says dark matter will turn out to be packing material. |
| Bowman | 15 Oct 2016 5:04 p.m. PST |
And maybe we don't need to invent "dark" this or that to make the equations come out right. link |
ScottWashburn  | 17 Oct 2016 4:57 a.m. PST |
I'm with you on this, John. I've never been comfortable with the whole dark matter-dark energy theories. I'd much prefer the scientists just say: "We don't know why things are behaving this way--but we'll find out." Rather than hand-wave a bunch of stuff into existence that can't be detected by known means. |
 javelin98  | 17 Oct 2016 11:00 a.m. PST |
I thought the universe was supposed to be infinite, which then would lead to an assumption of an infinite number of galaxies. So what's 10 times infinity? |
| Bowman | 18 Oct 2016 4:46 p.m. PST |
I thought the universe was supposed to be infinite….. link |
| Great War Ace | 18 Oct 2016 6:24 p.m. PST |
I haven't detected any finite limits to my 'satiable imagination yet. That's quite enough infinity for me……………… |
| gladue | 18 Oct 2016 8:11 p.m. PST |
While we haven't directly observed dark matter, we have gotten quite a number of different indirect observations of its effects. It is pretty likely that it exists. The question there is much more "what is it, and what can it do"? Dark energy is much different though, and there are a wide range of possible explanations for the acceleration. Doubt of dark energy is far more valid than doubt of dark matter. |
| Bowman | 19 Oct 2016 5:03 a.m. PST |
Doubt of dark energy is far more valid than doubt of dark matter. Is it? The observations tell us that not only is the universe expanding but that the expansion is accelerating. That occurs, despite the pull of gravitation. Clearly, there is some force pulling the universe apart, and we can't "see" it or measure it directly. "Dark energy" is a placeholder name for this force. I would say this follows Scott Washburn's quote pretty well (see above). I agree that Dark matter is pretty well theoretically established amongst astrophysicists. I'm not aware of any prominent deniers. There are some observations that can only be explained by dark matter. Plus, the concept of dark matter is already over 85 years old. |
