Astronomy Picture of the Day - APOD ： Index - Main Page
Stars : Binary Stars * Black Holes * Globular Clusters * Individual Stars * Neutron Stars * Nurseries * Open Clusters * Sun * White Dwarfs Galaxies : Clusters of Galaxies * Colliding Galaxies * Elliptical Galaxies * Local Group * Milky Way * Spiral Galaxies Nebulae : Dark Nebulae * Emission Nebulae * Planetary Nebulae * Reflection Nebulae * Supernova Remnants Miscellaneous : Quasars/Active Galacti
APOD: 2000 November 27 - Earth at Night
Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2000 November 27 Explanation: This is what the Earth looks like at night. Can you find your favorite country or city? Surprisingly, city lights make this task quite possible. Human-made lights highli
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APOD: 2021 September 15 - Cyclone Paths on Planet Earth
