- Wikipedia: Dark Matter
Article about the matter that can't be detected by its emitted radiation but whose presence can be inferred from gravitational effects on visible matter such as stars and galaxies.
en.wikipedia.org/wiki/Dark_matter
- Questions on Dark Matter
From Ask a High-Energy Astronomer.
imagine.gsfc.nasa.gov/docs/ask_astro/dark_matter.html
- Cryogenic Dark Matter Search (CDMS)
Looking for dark matter in the form of Weakly Interacting Massive Particles, or WIMPs.
cdms.berkeley.edu
- UK Dark Matter Collaboration
Consortium of astrophysicists and particle physicists.
hepwww.rl.ac.uk/ukdmc
- MACHO Project
Primary aim is to test the hypothesis that a significant fraction of the dark matter in the halo of the Milky Way is made up of objects like brown dwarfs or planets, known as MACHOs, for MAssive Compact Halo Objects.
wwwmacho.mcmaster.ca
- Scientific American Frontiers: The Dark Side of the Universe
Looks at what new discoveries about dark matter and dark energy tell astronomers about the nature of our universe.
www.pbs.org/saf/1405/index.html
- Dark Matter Mystery
Takes a look at the candidates for dark matter including MACHOS, WIMPS, and gas.
xrtpub.harvard.edu/xray_astro/dark_matter.html
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