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NEW: Discover your Universe Here
Tonight's Sky
Grab a telescope, binoculars, or just a lawn chair and head out to the backyard for a night of cosmic sightseeing. Our video stargazing guide keeps you informed about constellations, deep sky objects, planets, and events in the night sky
Check out which constellations are currently up in the sky with the AAG SkyViewer
Here is a link to a printable Sky Map
You hear us throw these words around at star parties.... Still Confused?.... Check out these explanations...
Why is Space weather important to people on Earth? Learn a little about space weather in this video.
The Sun is responsible for space weather. To monitor space weather for yourself, look at the AAG Planets page for the solar images, charts, and real-time data from spacecraft.
William Herschel is often regraded as one of the pioneers of modern astronomy. Learn more about William Herschel in this video.
Supermassive Black Holes are among the most fascinating and important objects in the Universe.
What is Infrared light?
Interactive: Why do astronomers use so many telescopes? Check out the answer to this question, and many others, with:
The Spitzer Space Telescope Infrared Gallery
Kids!... Check out infrared and the Spitzer Space Telescope
The Spitzer Space Telescope Audio Podcasts
What is Radio Astronomy?
Solar and planetary radio astronomy for schools
Want to listen to pulsars?
The Radio Telescope Gallery
Listen to Cosmic Radio Podcasts
The National Radio Astronomy Observatory
Learn about some of the technology at New Mexico's VLA and other radio astronomy sites around the world.
Why is the sky Blue?
Why are there no green stars?
Why isn't Pluto a planet anymore?
What causes an eclipse of the moon?"
...and more!....
Interactive:
Mission websites:
