Does nonbaryonic dark matter exist?

AI Thread Summary
Nonbaryonic dark matter has been proposed to explain large-scale motions in the Universe, but its existence remains debated. Alternative explanations for these phenomena are being considered, raising questions about the completeness of current theories. Neutrinos have been detected, suggesting that there may be other forms of matter or energy influencing cosmic dynamics. The exact amount of nonbaryonic dark matter is still unknown, leaving room for further exploration and research. The discussion highlights the ongoing uncertainty in understanding the fundamental components of the Universe.
Tyger
Messages
388
Reaction score
0
People have "invented" it out of a need to explain large scale motions in the Universe, but is it really there? Might there be other explanations?

Here's an interesting page about it.

http://www.astro.ucla.edu/~agm/darkmtr.html

You can get more by putting "dark matter" into Google or MSN. Does what you know about it convince you that all the possibilites have been explored?
 
Last edited by a moderator:
Astronomy news on Phys.org
Neutrinos have already been detected. As for how much nonbaryonic dark matter exists, I haven't a clue.
 

Thread 'Does it make sense to build new radio telescopes?'

TL;DR Summary: In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect alien signals, it will further expand the radius of the so-called silence (or rather, radio silence) of the Universe. Is there any sense in this or is blissful ignorance better? In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect...
View full post »
Thread 'Could gamma-ray bursts have an intragalactic origin?'

Thread 'Could gamma-ray bursts have an intragalactic origin?'

This is indirectly evidenced by a map of the distribution of gamma-ray bursts in the night sky, made in the form of an elongated globe. And also the weakening of gamma radiation by the disk and the center of the Milky Way, which leads to anisotropy in the possibilities of observing gamma-ray bursts. My line of reasoning is as follows: 1. Gamma radiation should be absorbed to some extent by dust and other components of the interstellar medium. As a result, with an extragalactic origin, fewer...
View full post »

Thread 'Our Beautiful Universe - Photos and Videos'

This thread is dedicated to the beauty and awesomeness of our Universe. If you feel like it, please share video clips and photos (or nice animations) of space and objects in space in this thread. Your posts, clips and photos may by all means include scientific information; that does not make it less beautiful to me (n.b. the posts must of course comply with the PF guidelines, i.e. regarding science, only mainstream science is allowed, fringe/pseudoscience is not allowed). n.b. I start this...
View full post »

Similar threads

I Dark matter + gravity is 'right', or our understanding of gravity is wrong?
Replies
35
Views
4K
I How is Dark Matter distributed around our galaxy?
Replies
6
Views
3K
I Rotation curve of a gas disk in an elliptical galaxy
Replies
5
Views
2K
I Which instruments are used to determine the composition of dark matter?
Replies
3
Views
2K
I Is Dark Matter Challenging Our Understanding of the Universe?
Replies
22
Views
6K
I Does Dark matter get trapped in black holes and increase their mass?
Replies
14
Views
3K
I Dark Matter Disc Evidence: New Possibilities in Milky Way Galaxy
Replies
4
Views
2K
I What Is the True Nature of Dark Matter?
Replies
3
Views
1K
Is Dark Matter a Dead End in Physics?
2
Replies
82
Views
11K
B What's the deal with dark matter
Replies
45
Views
7K

Hot Threads

Recent Insights

Back
Top