Dark Matter and Dark Energy Dark Matter and Dark Energy are important. They can help us know how the universe began. These two are the mysteries of the universe; they compose about 90% of the universe. They are mysteries because we believe that they exist but we can’t see them or detect them. People question whether they manifest to be the same thing. Astronomers know very little about their constitution so they cannot assume they are related. Dark Energy is a mysterious force that drives the
Hypertext Book on Stellar Evolution @ The University of Oregon http://hyperphysics.phy-astr.gsu.edu/hbase/starlog/staspe.html#c1 Star Spectral Classifications @ Georgia State University http://oposite.stsci.edu/pubinfo/PR/96/22/pulsars.html How Pulsars Are Formed @ The Space Telescope Science Institute