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For decades, it has been observed that galaxies spin way too fast for the amount of (known) matter they have; the conclusion is that there is some - actually a lot of - unknown matter, perhaps 5 times as much as the known matter. This was at first a suspicion, but more recent (and more accurate) observations make this conclusion more and more inevitable. There are also other observations, such as those related to gravitational lensing.
What else can I help you with?
What matter gives off electromagnetic radiation?
Dark Matter
When was dark matter therolized?
Dark matter was first theorized in the early 1930s, primarily by Swiss astronomer Fritz Zwicky. He observed the Coma Cluster of galaxies and noticed that the visible matter could not account for the gravitational effects observed, leading him to propose the existence of unseen matter that he termed "dunkle Materie," or dark matter. This concept gained further support in the following decades as more evidence accumulated from various astronomical observations.
Did Einstein know about dark matter?
No, Einstein did not know about dark matter during his lifetime. The concept of dark matter was not proposed until the 1930s, after Einstein's major contributions to the field of physics.
Is dark matter considered to be the conciousness of GOD?
No. Dark Matter is the cause of a number of galaxies and galaxy clusters apparently having far more mass than they should. Scientists still do not know what dark matter is. It appears to interact with the rest of the universe only through gravity; there is nothing to indicate it has anything to do with consciousness. The idea dark matter relating to consciousness likely comes from Phillip Pullman's fantasy book series His Dark Materials in which dark matter is the stuff of consciousness.
Are researchers actively hunting to discover dark matter?
Yes, researchers are actively searching for dark matter through various experiments and observations in order to better understand its properties and role in the universe.
Dark matter is inferred to exist because?
Dark matter is inferred to exist because of the gravitational effects it has on visible matter in the universe. Observations of galaxies rotating faster than expected and the bending of light around massive objects support the presence of dark matter. However, dark matter itself has not been directly observed or detected.
What has the author Antony Cooke written?
Antony Cooke has written: 'Dark nebulae, dark lanes, and dust belts' -- subject(s): Astronomy, Observations, Interstellar matter
What matter gives off no electromagnetic radiation?
Dark matter is a type of matter that does not interact with electromagnetic radiation, making it invisible and undetectable using traditional methods.
Is it true that if you touch dark matter you blow up?
No.We know very little about dark matter; there are some ideas, but, as yet, nobody knows for sure what it is. What we doknow about dark matter, however, is that it interacts very weakly with other matter. Dark matter and "normal" matter are intermixed throughout space; if there were some catastrophic annihilation interaction between the two, we'd see the electromagnetic signature of that in observations of galaxies and galaxy clusters.
What percentage of the universe is dark matter?
Roughly 70% of the Universe is dark energy. Dark matter makes up about 25%. The rest, everything on Earth, everything ever observed with all of our instruments, all normal matter - adds up to less than 5% of the Universe. That is, with the knowledge and the proof that both dark energy and dark matter exist rather than inferences.
What is the temperature of dark matter?
At present we do not know. It might be almost motionless, it might have a high velocity, it might have a velocity near that of light. These three hypotheses of the nature of dark are called (respectively); cold dark matter, warm dark matter, and hot dark matter.
If there is no dark matter in the Milky Way Galaxy what is the best alternative explanation for the observations?
If there is no dark matter in the Milky Way Galaxy, one alternative explanation for the observations could be modifications to the theory of gravity, such as MOND (Modified Newtonian Dynamics). MOND proposes that gravity behaves differently on large scales than predicted by Newtonian physics, potentially explaining the observed phenomena without the need for dark matter.
