Spergel, David N. Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey.
- Astronomical evidence for dark matter
- Novel nature of dark matter
- Dark matter candidates
- Links to Primary Literature
- Additional Readings
Particles or objects that exert a gravitational force but do not emit any detectable light or electromagnetic radiation of any kind. Dark matter is the dominant form of matter in our Galaxy. Astronomers have detected the presence of dark matter through its gravitational effects and have shown that dark matter is not composed of ordinary atoms. Particle physicists have suggested several plausible candidates for dark matter; planned experiments are capable of detecting these new particles. There are controversial claims of dark-matter detection.
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