Tagged “astronomy”
172 pages · most loved first · page 2 of 8
Bad Astronomy
Phil Plait's classic site debunking astronomy misconceptions, with explainers on space myths, movie science mistakes and…
Building the Ultimate Solar System
Astrophysicist Sean Raymond assembles a physically plausible solar system packed with as many habitable worlds as possib…
Celestial
An interactive gravity well simulator where star systems bend a spacetime sheet; change gravity, push a planet or drop i…
Chromoscope
An interactive sky viewer that lets you explore the Milky Way and beyond in different wavelengths, like putting on X-ray…
Circumstellar Habitable Zone Simulator
An interactive simulator from the Nebraska Astronomy Applet Project that shows the habitable zone around stars of differ…
Clavius Moon Base
A classic debunking of moon landing hoax claims, with photo analysis and physics that explain each conspiracy argument p…
Clear Dark Sky
Star-gazing weather forecasts in clear-sky chart form, showing hour-by-hour cloud cover, transparency, and seeing for th…
Clear Outside
An international weather forecast built for astronomers, showing cloud cover, seeing, and moon conditions hour by hour f…
Clear Sky Alerts
A notification service for stargazers that sends a push alert when the sky over your location is forecast to be clear, s…
Clear Sky at Night
A set of reimagined skyline photos from cities around the world that reveal how the night sky would look without light p…
Cloudy Nights
One of the oldest amateur astronomy forums online, covering telescope reviews, observing reports, and astrophotography t…
Constellation Guide
A detailed guide to the night sky covering all 88 constellations, their brightest stars, deep-sky objects and myths, suc…
Cosmic Odometer
A calculator that estimates how far you have traveled through space since birth, adding up Earth's spin, its orbit and t…
Cosmic Odometer
Calculates how far you have traveled through the universe since birth, using real physics data for Earth's motion, the s…
CosmoBC AstroBlog
A blog about astronomy and space exploration with astronomy pictures and articles on astrophysics, the solar system, sta…
COSMOS-Web DR1 Viewer
A zoomable viewer for the COSMOS-Web survey of the deep sky from the James Webb Space Telescope, letting you pan across…
Curiosity Telescope Log
A terminal-styled build log of a hand-made 6 inch Newtonian reflector telescope, covering design, fabrication and learni…
Dark Site Finder
A light pollution map for stargazers that shows where the sky is darkest, helping you plan a trip to a good observing sp…
DarkSky International
An advocacy organization fighting light pollution, with maps of certified dark sky places and tips for better backyard s…
Dave's Astronomy
Amateur astrophotography from Edmonton with zoomable deep-sky images of clusters, nebulae and galaxies, including this D…
Drake Equation Calculator
An interactive Drake Equation calculator that estimates how many advanced civilizations may exist in the Milky Way, with…
EarthSky
A daily guide to the night sky and natural world, with tonight's visible planets, meteor shower alerts, and clear explan…
Eclipse Atlas
An atlas of solar eclipse path maps, from upcoming eclipses of 2026-2028 back through historical maps of eclipses since…
Eclipse98
An archived 1998 multimedia eclipse site with image galleries, live images, lessons, games and a virtual theater, a char…
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