Caution! The site can't guarantee, that text has age permission. The site is not recommended, if you are less than 18 years old.
The site shows example sentences for English words. How the word or phrase could be used in a sentence?
" ... If we were to look at a typical dark matter simulation of a galaxy's halo, and we superimposed the normal, luminous matter atop it, what we would see isn't just one enormous dark matter "fluffball," but a series of smaller-scale dark matter substructure that flows through the galaxy. ... "