Skip to main content
Global Edition
Friday, May 10, 2024

Dark matter

Hypothetical form of matter that interacts with gravity, but not with light or electromagnetic field


Dark matter
Dark matter

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. Such effects occur in the context of formation and evolution of galaxies, gravitational lensing, the observable universe's current structure, mass position in galactic collisions, the motion of galaxies within galaxy clusters, and cosmic microwave background anisotropies.

0 shares 1 views

News coverage

You might like