(February 9, 2016 at 3:29 pm)Rhondazvous Wrote:(February 9, 2016 at 3:23 am)Alex K Wrote: The air analogy is not bad. It is conceivable that 10 years from know we make DM in the lab, detect and measure it and know most its properties. If we're lucky and it is comparatively easy to detect.What is keeping us from detecting it now? It cannot be detected through electromagnetic means. Why do we not already have other means?
We don't know yet what the dark matter particle's detailed properties are, in particular how strongly they interact with atoms. As experiments become more and more sensitive, they cover more and more ground there, but there is still plenty of room for them to hide from us by having even weaker interactions or lower masses than we can currently detect.
The fool hath said in his heart, There is a God. They are corrupt, they have done abominable works, there is none that doeth good.
Psalm 14, KJV revised edition