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In astronomy, dark matter is a hypothetical form of matter that appears not to interact with light or the electromagnetic field. Dark matter is implied by gravitational effects which cannot be explained by general relativity unless more matter is present than can be seen.
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In cosmologia, la materia oscura è un'ipotetica componente di materia che, diversamente dalla materia conosciuta, non emetterebbe radiazione elettromagnetica e sarebbe attualmente rilevabile solo in modo indiretto attraverso i suoi effetti gravitazionali. L'ipotesi nasce per giustificare diverse osservazioni astrofisiche, in ...
Dark Matter è una serie televisiva di fantascienza trasmessa dalla rete via cavo statunitense Syfy dal 12 giugno 2015 al 25 agosto 2017. Si tratta di una space opera ideata da Joseph Mallozzi e Paul Mullie, i quali avevano già pubblicato per l'editore Dark Horse Comics, la storia narrata nel 2012 in un omonimo fumetto.
- serie TV
23 gen 2024 · Dark matter. Unlike normal matter, dark matter does not interact with the electromagnetic force. This means it does not absorb, reflect or emit light, making it extremely hard to spot. In fact, researchers have been able to infer the existence of dark matter only from the gravitational effect it seems to have on visible matter. Dark ...
3 giorni fa · 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).
- Adam Riess
- What is dark matter?Dark matter is a component of the universe whose presence is discerned from its gravitational attraction rather than its luminosity.
- What percentage of the matter-energy composition of the universe is made of dark matter?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 m...
- Who first inferred the existence of dark matter?Dark matter’s existence was first inferred by Swiss American astronomer Fritz Zwicky, who in 1933 discovered that the mass of all the stars in the...
- What are the types of dark matter?Two varieties of dark matter have been found to exist. The first variety is about 4.5 percent of the universe and made of the familiar baryons (i.e...
9 mag 2018 · Lisa Randall. Illustration by Chris Gash. Physicists and astronomers have determined that most of the material in the universe is “dark matter”—whose existence we infer from its gravitational...
22 apr 2024 · 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
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