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This guide covers some of the highlights of the universe outside our own little cosmic neighborhood, from the inner workings of stars to the mysteries of dark energy and dark matter.
Cosmic Beacons
Star Color and Energy
Colorful Dwarfs
Exploding Stars
Black Holes
Exoplanets
Signs of Life
Finding Earth-Like Planets
Galaxies: Cities of Stars
Types of Galaxies
Galaxy Formation
The Milky Way
The Local Group
Galaxies Fade
The Whole Universe
Age of the Universe
Dark Matter
Dark Energy
Energy: Tools of the Trade
Astronomers and Observatories
Phenomena, Myths and Fallacies
Astronomical Firsts