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This Concept Map, created with IHMC CmapTools, has information related to: Doppler Effect and Astronomy, or moving away causes waves, redshift observed by Edwin Hubble, spectral lines from light waves, or moving away relative to someone, violet end of electromagnetic spectrum which is called blueshift, light waves from distant stars and galaxies, light waves to red end of electromagnetic spectrum, that the Universe is expanding is part of Cosmic Evolution, Doppler Effect is caused by a vibrating source, and frequency seems higher shifting spectral lines, spectral lines from light waves, bunch up so wavelength is shorter, red end of electromagnetic spectrum which is called redshift, a vibrating source either moving towards, stretch out so and frequency seems lower, light waves from distant stars and galaxies, waves to bunch up, Cosmic Evolution is part of Astronomy, distant stars and galaxies were moving away from Earth, waves to stretch out