Top 11 alternative sites to daviddarling.info
The Nine Planets of The Solar System | Eight Planets Without Pluto
An overview of the history, mythology and current scientific knowledge of the planets, moons and other objects in our solar system.
Space
Get the latest space exploration, innovation and astronomy news. Space.com celebrates humanity's ongoing expansion across the final frontier.
Author: Mike Wall
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Embark on a journey of discovery with the Hubble Space Telescope.
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Author: Kelly Kizer Whitt
Home | SETI Institute
Centauri Dreams
Imagining and Planning Interstellar Exploration
Author: Paul Gilster
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Astronomy Trek is an educational but fun scientific resource, jam-packed with fascinating facts and news about space and the wonders of the Universe.
The Planetary Society
The Planetary Society is the largest and most effective nonprofit organization that promotes the exploration of space through education, advocacy, and innovative projects.
In-The-Sky.org
Astronomy news and interactive guides to the night sky from In-The-Sky.org
Author: Dominic Ford
ESO
Welcome to the most powerful astronomical observatories in the world.
Author: Information Org
Encyclopedia Astronautica
Encyclopedia Astronautica the most complete resource for space history - rockets spacecraft launch vehicles astronauts cosmonauts spaceflights engines space exploration