StavrosPanagiotidis said:I think that dark matter is matter from an other universe that we can only interact with through gravity.
StavrosPanagiotidis said:Does anyone have a hypothesis for why does the matter interact with us only with gravity and not with any other of the fundamental forces like electromagnetism etc.
Thanks, I will try to stick to mainstream science.Drakkith said:Personal ideas, speculation, and theories are not allowed here at PF. We like stick to mainstream science.
Yes, there are many hypotheses. Check out this wikipedia article if you'd like to know what those are. Possibilities include "exotic" matter, unseen normal matter, and modifications to gravity.
Dark matter is a type of matter that does not emit or absorb light, making it invisible to telescopes. However, its presence can be inferred through its gravitational effects on visible matter. It is important in understanding the universe because it makes up about 85% of the total matter in the universe and plays a crucial role in the formation and evolution of galaxies.
Dark matter interacts with gravity just like visible matter does. It has mass, which means it is affected by gravity and can also exert gravitational pull on other objects. This is why the presence of dark matter can be inferred through its gravitational effects on visible matter.
Dark energy is a type of energy that is thought to be responsible for the accelerating expansion of the universe. It is different from dark matter, which is a type of matter. While dark matter plays a role in the formation of structures in the universe, dark energy affects the overall expansion of the universe.
Scientists use a variety of methods to study and detect dark matter, including observations of its gravitational effects on visible matter, simulations of the universe's evolution, and experiments using particle detectors. However, detecting and studying dark matter is still a challenge and much about it remains a mystery.
While there is currently no evidence for the existence of other universes, some theories suggest that there could be multiple universes with different physical properties, including varying amounts of dark matter and gravity. However, these ideas are still highly speculative and require further research and evidence to be confirmed.