Io: Tidal Heating, Hyperactive Volcanoes, and Juno
Explore Io’s extreme volcanism: tidal heating, lava lakes, plumes, plasma torus, Juno flybys, mission concepts, and how to observe the most active moon.

Guides to help with your Stargazing Adventure

Information on Galaxies, Stars, Constellations, Planets, Moons, Comets and Asteroids
Listen to Bernard Miller describe his journey into AstroPhotography and detail how he captured this stunning image of the Sculptor Galaxy.
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Drew Evans talks about his passion for astrophotography, the equipment used and tips for post processing image data.
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Hear D.j Van Bourgondien as he talks about using his Celestron EdgeHD 8″ telescope to capture this image of the Fireworks Galaxy
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Below are a selection of our Articles, to find more click on one of the sections above, or use the Menu at the top of the page.
Explore Io’s extreme volcanism: tidal heating, lava lakes, plumes, plasma torus, Juno flybys, mission concepts, and how to observe the most active moon.
Choose the right telescope mount: alt-az vs equatorial, manual vs GoTo, payload capacity, tracking, polar alignment, periodic error, guiding, and setup tips.
Learn how to choose a Dobsonian telescope: aperture, focal ratio, mounts, truss vs tube, collimation, accessories, and real-world performance.