Sub-Forums : Cosmology Search this Forum
New Posts
Quality answers to common cosmology questions
Jun25-11 08:50 PM bcrowell 

Register to Post Thread

Cosmology

- The origin, evolution, structure and eventual fate of the universe.
RSS Feed Icon Search this Forum
Meta Thread / Thread Starter Last Post Replies Views
To have an enjoyable cosmo forum we needed a balance between mental freedom on the one hand and a shared knowledge...
Apr8-14 08:39 AM
Jorrie
483 125,906
The new A20 tabular calculator lets you look at changing geometry out to about 88 billion years according to the...
Feb8-14 08:31 AM
mfb
61 23,832
I often hear creationists claim that the Big Bang Theory states that something came out of nothing and exploded....
Oct8-09 01:10 AM
DaveC426913
6 1,499
Hubble discovered that galaxies are moving away at each other at a rate, today physicists believe that this rate is...
Nov2-09 03:02 AM
Wallace
2 958
I've heard claims that the Big Bang defies the law of conservation of angular momentum. For example, not all planets...
Nov29-09 05:08 PM
justwondering
9 6,235
Interesting article in Newscientists, thought I'd start a discussion... ...
Dec23-10 04:40 PM
Kevin_Axion
1 1,118
I'm trying hard to find a decent explanation for someone that an expanding universe doesn't mean that galaxies get...
Jul10-08 11:30 AM
cristo
19 7,503
Where is the edge/boundary of the universe may sound like a simple question but I can see 3 possibilities. 1...
May13-13 05:09 PM
Spourk
133 7,492
I have recently come across a new theory about the formation of the moon. It says that the Earth was rotating faster...
Nov11-13 08:11 AM
D H
2 871
i would like to know how to explain the beginning of universe and during high collision of high energy particles by...
Apr5-06 10:21 PM
marcus
3 2,132
The title says it all. With all that mass in such a small space it must have been one, but then everything would have...
Mar16-11 07:58 PM
bcrowell
43 6,238
I've just been reading some of these threads, as i am quite interested in cosmology. I was wondering about a possible...
Nov3-06 06:21 AM
EL
6 1,656
Hey everyone, I have a limited knowledge in this field, but am very interested in it and am able to understand the...
Feb11-10 10:45 AM
Aero_Marty
9 1,836
i was searching for the exact specifics of a type III civilization when i came accross this serious news artical ...
Feb6-06 11:58 PM
Chronos
3 2,510
I have a question concerning what has been proven about the properties of light over billions of years and billions of...
May30-11 04:16 AM
Chalnoth
4 1,578
In this thread I would like you to add some more detailed information on what the people behind the new physics prize...
Oct5-11 04:10 AM
Chalnoth
2 1,160
Hi. I am new to this forum and was wondering if anyone can answer my question. What caused the physical laws we...
Apr1-09 12:27 AM
Fra
40 3,239
Photons must have a certain amount of energy to be absorbed by an electron. A photon with a little too much energy to...
Aug12-10 04:40 AM
Vanadium 50
7 2,692
My standard disclaimer (this is my second post now): "I'm not a physicist... I'm not a mathematician... I'm not even...
May13-11 01:03 PM
phinds
5 1,292
Okay, so being fourteen, I know that I'm way out of my league on this forum. I do my best to understand anything to do...
Jan8-09 10:23 PM
marcus
9 1,451
Regarding the Universe's expansion being faster if the subject is further away from the observer, would it be fair to...
Jan7-09 06:17 PM
aguycalledwil
0 1,094
I have been thinking about the idea that the universe is infinite in size and have wondered if it is not also possible...
May31-13 10:49 AM
Naty1
8 763
Hello, I hope you don't mind a question from a complete novice and someone not related to physics at all. I am...
Oct12-11 09:55 AM
aherrera
7 1,243
I've got to write a speech for Public Speaking and the topic is "Time waits for no one" and I was wondering if anyone...
Apr24-12 08:59 AM
balaonspace
2 1,226
I've read through a lot of the other MOND vs DM debate threads, but I was wondering whether or not this has been...
Jun20-08 01:42 PM
LowlyPion
18 3,068
When cosmologists talk about "late times" do they mean post-recombination and pre-Lambda domination or what?
Aug22-11 10:00 PM
Chronos
1 1,326
It turns out that galaxies from over 12 billion years ago are anything but small and young. ...
Jan8-10 08:00 AM
sylas
7 1,632
This has been puzzling my mind for a long time. How do we really know the universe is expanding? Based on observation?...
Jan14-10 12:38 AM
Chronos
6 1,251
Sorry 'bout posting so many topics but there are too many things that are unclear to me. CMBR measurements suggest...
Jan13-10 04:50 PM
Skolon
6 2,034
We always get to know that there could be other 'multiverses' with completely different physical constants, but I'm...
Apr16-12 04:23 AM
Aidyan
13 1,701
Could the cosmological redshift be explained also as a change of the fundamental physical constants with distance? Say...
Apr22-12 10:05 PM
marcus
5 1,563
What does most evidence point to regarding the reasons for Sedna's looong orbit? I think it highly unlikely that the...
Jul14-10 12:30 AM
Chalnoth
6 1,406
Random musing: Could it be that sufficient expansion of the universe that leaves behind only black holes that have...
Aug6-12 06:26 PM
Quantum Kid
1 1,031
This is something I thought about while drifting off to bed last night. Immediately after the period between the...
Jun2-09 09:10 AM
ajassat
3 1,332
Assalamualykum Iím a non-math person, but that doesnít deter me from being logical and rational who churns out...
Mar20-11 07:20 AM
ZapperZ
20 2,874
Hello. I have been working through some questions and answers to do with cosmology. One of them asks you to...
May13-11 01:09 PM
George Jones
8 1,815
Recently, I've taken an interest in Astronomy and decided to become better equated with the night sky. This of course...
Apr25-11 07:39 PM
cepheid
3 1,079
As speed of galaxies is proportional to distance. Can we assume some galaxies have speeds grater than c? And do they...
Jun6-11 08:24 AM
Chalnoth
7 1,966
Maybe this question is already asked, but how did the first proton came into existence? A soup of quarks cooling...
Jul24-12 09:16 AM
Chalnoth
14 1,945
Mond uses the function μ ... Instead why not propose a scalar name it "dim" , a function of the location. Basic...
Mar16-13 04:21 PM
Alain De Vos
0 624
Hi We know that a black hole is a dense object so dense that it gravitational makes it vanish from the universe. ...
Jun24-08 06:23 PM
Wallace
32 3,841
http://www.space.com...map-aas223.html Recent measurements suggest the universe it is flat and infinite The new...
Jan19-14 03:19 AM
Chronos
4 684

Register to Post Thread
Bookmark and Share

Display Options for Cosmology Mentors
Showing threads 81 to 120 of 4463 Mentors : 2
 
Forum Tools Search this Forum
Search this Forum :
 
Advanced Search