Dark matter | Definition, Discovery, Distribution, & Facts
WEBAug 28, 2024 · dark matter, a component of the universe whose presence is discerned from its gravitational attraction rather than its luminosity. Dark matter makes up 30.1 percent of the matter-energy composition of the universe; the rest is dark energy (69.4 percent) and “ordinary” visible matter (0.5 percent).
What Is Dark Matter? | NASA Space Place – NASA Science for Kids
WEB3 days ago · Dark matter is that invisible glue that keeps stars, dust, and gas together in a galaxy. This mysterious substance makes up the majority of a galaxy's mass and forms the foundation of our Universe's structure. Dark matter is still one of the greatest mysteries of science. Credit: NASA/JPL-Caltech.
Dark Matter & Dark Energy - Science@NASA
WEBMatter is defined as any substance that has mass and occupies space. But there’s more to the universe than the matter we can see. Dark matter and dark energy are mysterious substances that affect and shape the cosmos, and scientists are still trying to figure them out. Learn more.
Dark matter - Wikipedia
WEBIn astronomy, dark matter is a hypothetical form of matter that does not interact with light or other electromagnetic radiation. Dark matter is implied by gravitational effects which cannot be explained by general relativity unless more matter is …
Dark matter - CERN
WEBDark matter seems to outweigh visible matter roughly six to one, making up about 27% of the universe. Here's a sobering fact: The matter we know and that makes up all stars and galaxies only accounts for 5% of the content of the universe! But what is dark matter?
What is dark matter? | Space
WEBAug 6, 2024 · Dark matter emits no light and can't be directly observed. Scientists believe it, along with dark energy, makes up most of the universe's mass.
DOE Explains...Dark Matter | Department of Energy
WEBDark Matter Facts. Dark matter makes up about 85 percent of the total matter in the universe, accounting for more than five times as much as all ordinary matter. Dark matter played an important role in the formation of galaxies and the evolution of the universe.
What is dark matter? What's it made out of? How do we know it …
WEBJul 9, 2024 · In this episode, we talk to Priya about how scientists first discovered dark matter, why we care about studying it and what it can tell us about the universe we live in.
Dark Matter - NASA Science
WEBThe mission will measure the locations and quantities of both normal matter and dark matter in hundreds of millions of galaxies. Throughout cosmic history, dark matter has driven how stars and galaxies formed and evolved.
What Is Dark Matter? - Nature
WEBMay 9, 2018 · Physicists and astronomers have determined that most of the material in the universe is “dark matter”—whose existence we infer from its gravitational effects but not through electromagnetic...