No matter what you do, matter can neither be created nor destroyed. This property of the universe is called the law of ...

Everything we visualize about space, including stars, planets, gases, and even galaxies, make up just a small fraction of the ...

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 ...

The researchers found a huge clump of dark matter about 1.4 million light-years west of the cluster’s center.

JAMES: Because mass is about the amount of matter, whereas weight is a force and is the heaviness due to gravity. ELLIE: Exactly. So let me tell you about the equation you need to calculate the ...

Primordial black holes could inhabit the modern-day cosmos, making them responsible for the phenomenon of dark matter, according to new research.

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 ...

They are omnipresent yet interact extremely rarely with matter. In cosmology, they influence the formation of large-scale galaxy structures, while in particle physics, their minuscule mass serves ...

A piece of iron with the same dimensions as a piece of aluminium will be heavier because the atoms are more closely packed and each iron atom has much more mass than each aluminium atom.

As mass gathers in those wells, stars are formed. This continuously "grows" a galaxy and, after millions of years, that galaxy ends up sitting in a dark matter bubble. But Ethan Nadler ...

created by mass. But there’s another, lesser-known solution that’s often ignored. It can also create an attractive force but doesn't come from any actual matter. Lieu took this second solution ...