Since we don't know what dark matter is, the answer is: for every possible candidate for the dark matter there is a different strategy to search for it. People build giant detectors deep underground (to get away from all the other particles streaming through the environment around us) and ...
However, dark matter is harder to study than even that because it does not come conveniently clumped into super-dense balls like stars and black holes. (That would be far too easy.) Instead, the primary theory of dark matter says that it is made of hypothetical particles called Weakly Inter...
What is Dark Matter Made of? Keep in mind that dark matter is a theory. As telescopes got bigger and we observed more of the universe, we realized that there’s far more gravity in the universe than can be accounted for. What’s creating it? What is this strange, unseen, powerful stuff?
7. What is quantum uncertainty and why is it important? 7.什么是量子不确定性,为什么它很重要? 8. Will there ever be a "theory of everything"? 8.会有“万有理论”吗? 9. Why does time seem to flow in only one direction? 9.为什么时间似乎只朝一个方向流动? 10. What is dark matter?
000 times more mass than a proton. Another candidate is the axion, a particle ten-trillionth of the mass of an electron. In theory, axions would convert to a particle of detectable light (called aphoton) in the presence of a strong magnetic field. Alternately, dark matter may also exist...
Nowadays we know that, in our Universe, dark matter occupies about 25% of the content, compared to only 5% of the "visible" ordinary matter. In this talk, we propose that the description of dark matter would be an extension of the Standard Model - a gauge theory. We all know that in...
The leading theory of dark matter is running out of room to hide. Most of the Universe is missing. The motion of the stars and galaxies allows astronomers to weigh it, and when they do, they see a major discrepancy in cosmological accounting. For every gram of ordinary matter that emits ...
Since vacuum energy density is so similar in nature, it's often interchangeably called dark energy. Another theory, which has been partially disproven, defines dark energy as a new type of matter. Dubbed "quintessence," this substance would fill the universe like a fluid and exhibit negative ...
Dark matter is a theorized form of matter that exists in our universe. The term theorized means that no one has been able to see dark matter, but we have been able to perceive the effects of dark matter working in nature, that's why we know it exists. We haven't been able to ...
Caloricwas the ”dark matter” of the early 19th century. It was a hypothetical particle that was supposed to describe heat. It was later dismissed as a theory with the emergence of thermodynamics. Source: Niklas Nielsen In the very first split seconds after the Big Bang, our Universe was ...