what is a characteristic of dark matter?
doesn't interact with baryonic matter
it has not been observed directly
it interacts with electromagnetic radiation
humans can see it
One of the characteristics of dark matter is that it does not interact with baryonic matter. Baryonic matter refers to ordinary matter consisting of protons, neutrons, and electrons that make up atoms. Dark matter does not experience electromagnetic forces, which are responsible for interactions between charged particles and the emission or absorption of electromagnetic radiation.
Another characteristic is that dark matter has not been observed directly yet. Scientists have only inferred its existence through its gravitational effects on visible matter and the cosmic structure of the universe. However, its exact composition and nature remain unknown.
Lastly, it is important to note that humans cannot see dark matter since it does not interact with electromagnetic radiation, including visible light. It can only be detected indirectly through its gravitational effects on visible matter and light.
A characteristic of dark matter is that it doesn't interact with baryonic matter.
A characteristic of dark matter is that it doesn't interact with baryonic matter, which refers to the ordinary matter that makes up atoms and molecules. This means that dark matter does not interact with light or other forms of electromagnetic radiation in the same way that baryonic matter does. Consequently, dark matter cannot be seen directly by humans or detected using traditional telescopes or other instruments that rely on the detection of electromagnetic radiation.
Instead, the presence of dark matter is inferred indirectly by observing its gravitational effects on other visible celestial objects. For example, the rotation curves of galaxies, the motion of stars within galaxies, and the gravitational lensing of light are all evidence of the presence of additional mass that cannot be accounted for by visible matter. These observations suggest the existence of dark matter, although its true nature and constituents remain unknown.