How is matter different from mass? These and other questions about the deepest levels of physics, answered inside.

These two properties of axions mean that they are exceptionally good at collapsing down to incredibly high densities, pulled ...

Perhaps one of the most surprising discoveries of the 20th century was that this ordinary, or baryonic, matter makes up less than 5 percent of the mass of the universe. The rest of the universe ...

This dark matter makes up most of the mass in the universe, far outweighing the amount of luminous matter. The identity of dark matter remains a mystery, as experiments designed to detect a stray ...

Mass balance ensures that the carbon formerly ... individual elements can vary a great deal between nonliving and living matter (Figure 5). Life on Earth depends on the recycling of essential ...

Students will be able to make measurements showing that whether the process is a change of state, dissolving, or a chemical reaction, the total mass of the substances does not change. Note: In the ...

An international team of researchers has found dark matter dominating the halos of two supermassive black holes in galaxies ...

Miss Roberts: OK, so we are looking at the conservation of mass. Now, mass is the measure of how much stuff or matter is in an object and it's measured in either grams or kilograms. Katie ...