What is Dark Matter and Dark Energy?

AI Thread Summary
Dark matter and dark energy are distinct concepts in astrophysics, with no known relationship despite sharing the term "dark." Current scientific understanding does not provide definitive answers about their nature, and discussions often focus on their properties rather than their identities. Negative mass is a theoretical concept that does not exist in reality; it is sometimes used in comparative discussions but cannot be created. The community encourages further reading on the topics to clarify confusion. Overall, the mysteries of dark matter and dark energy remain unsolved in contemporary science.
Aero_Arnendu
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Hello Friends,
I, Arnendu Barman, is a high school last year student. I have much confusion in Dark Energy and Dark Matter. Actually I do not understand them and I also have problem on Negative Mass.
So friend please help me . Thank you...
 
Astronomy news on Phys.org
Give the following two articles a read and see if they help. Note that dark matter and dark energy are not related. They both simply share the word 'dark' in their name.

https://en.wikipedia.org/wiki/Dark_matter
https://en.wikipedia.org/wiki/Dark_energy

Negative mass is more problematic to discuss. Purely negative mass isn't known to exist, but the term can be used in situations where the mass of something is 'taken as negative' simply as a comparison to another state.
 
Can you tell me how to make a particle that has negative mass ?
 
Such a thing is not possible.
 
Hi Arnendu:
At this time no one knows what dark matter and dark energy are. We can talk about what properties they might have, or even must have, but that is all.
 

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