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mccarthyobservatory.org favicon

Discover astronomy through hands-on science learning

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Explore astronomy and science literacy with the John J. McCarthy Observatory, offering educational resources and telescope experiences.

mcpstars.org favicon

Experience astronomy shows and educational programs

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Explore the universe with Merrillville Community Planetarium offering shows and programs for schools and the public in Northwest Indiana.

nehruplanetarium.org favicon

Experience immersive 3D astronomy shows

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Explore astronomy and immersive 3D shows at Nehru Planetarium with workshops, exhibitions, and skywatch events.

stellarium-web.org favicon

View the night sky from anywhere in your browser

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Explore the night sky with an interactive online star map that lets you view stars, planets, and constellations from any location, right in your browser.

eclipse2024.org favicon

Plan and safely view the 2024 solar eclipse

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Eclipse2024.org offers expert info and tools to safely view the 2024 total solar eclipse in North America.

server1.wikisky.org favicon

Explore the night sky interactively online

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Explore stars, galaxies, and constellations with an interactive online sky map for astronomy lovers and curious stargazers.

stellarium.org favicon

Explore a realistic 3D night sky from home

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Stellarium lets you explore a 3D night sky on your computer, showing stars, planets, and constellations just as you'd see them in real life.

worldwidetelescope.org favicon

Explore the universe with interactive star maps

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Explore interactive maps of the universe and view astronomical data from telescopes worldwide using this web-based planetarium tool.

spacereference.org favicon

Browse an open database of asteroids and comets

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Explore a growing database of asteroids, comets, and other space objects. Discover detailed info about the universe in this open-source resource.

space-registry.org favicon

View and verify registered stars worldwide

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Browse and verify registered stars in an international celestial object registry. Explore a prestigious catalog and check your star registration details.

celestrak.org favicon

Track satellites and view real-time orbital data

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CelesTrak offers up-to-date satellite tracking data, tools, and resources for anyone interested in monitoring objects in Earth orbit.

gravitysimulator.org favicon

Simulate space scenarios with custom planets and physics

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Explore and simulate solar systems, exoplanets, and galaxy collisions with adjustable physics in a 3D gravity simulator.

sdss.org favicon

Access global sky survey data and research tools

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Explore the universe with SDSS-V—access sky-wide optical and IR data, research tools, and collaborative resources for astronomy and science education.

spaceengine.org favicon

Explore a seamless, realistic virtual universe

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SpaceEngine lets you explore a scientifically accurate virtual universe, traveling from stars to galaxies and landing on planets on your computer.

in-the-sky.org favicon

View interactive night sky charts and events

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Explore astronomy news and interactive night sky charts to discover planets, stars, and events happening above you. Perfect for stargazers and enthusiasts.

minorplanetcenter.org favicon

Track and discover asteroids and comets worldwide

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The IAU Minor Planet Center tracks and shares data on asteroids, comets, and minor planets, helping astronomers worldwide discover and monitor these objects.

legacysurvey.org favicon

View and download deep-sky astronomical survey data

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Explore detailed optical and infrared maps of the extragalactic sky, access survey data, and discover astronomical resources from the DESI Legacy Surveys.

mwatelescope.org favicon

Discover cosmic radio images and research data

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Explore the universe with the MWA Telescope—access radio astronomy data, learn about cosmic discoveries, and connect with the science community.

sdss3.org favicon

Access deep-space survey data and galaxy maps

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Explore massive spectroscopic surveys of the universe, our galaxy, and exoplanets with SDSS-III's data, tools, and research results.

cas.sdss.org favicon

Explore the universe with SDSS data and tools

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Explore detailed images and data from the Sloan Digital Sky Survey with interactive tools for astronomy research and discovery.

Worldwide Planetfacts.org Alternatives

universe2go.com favicon

Discover constellations with your smartphone

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Universe2go+ transforms your smartphone into a personal planetarium, letting you explore constellations, planets, and galaxies in the night sky.

sites.williams.edu favicon

Access detailed solar eclipse info and safety tips

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Explore solar eclipses with maps, safety tips, and educational resources from the International Astronomical Union's working group.

mainesolarsystem.com favicon

Travel the solar system from your car

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Explore the Maine Solar System Model, a large-scale 3D representation of the solar system spanning 100 miles along U.S. Route 1.

eclipse2017.nasa.gov favicon

Discover and relive the 2017 total solar eclipse

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Explore NASA's guide to the 2017 total solar eclipse, featuring event info, safety tips, live streams, maps, and educational resources for all ages.

fourmilab.ch favicon

Explore interactive astronomy and science tools

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Explore interactive astronomy tools, science resources, and educational projects on Fourmilab, a hub for curious minds and stargazers.

hirise.lpl.arizona.edu favicon

View stunning high-res images of Mars

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Explore detailed images of Mars from NASA's HiRISE camera, view science updates, and access a vast archive of high-resolution planetary photos.

djm.cc favicon

Find constellations by sky coordinates instantly

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Easily find which constellation contains any sky coordinates with this astronomy tool designed for quick star mapping and constellation identification.

memstar.fr favicon

Find stars and celestial objects with ease

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MeMstar® helps you easily locate celestial objects with a pointing device, making stargazing and astronomy more accessible for everyone.

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Identify stars and constellations instantly

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Explore the night sky with an interactive star map and astronomy tool that helps you identify stars, planets, and constellations in real time.

fallingstar.com favicon

Get real-time asteroid impact alerts

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ATLAS is an asteroid impact early warning system that scans the sky for moving objects and alerts about potential asteroid threats to Earth.

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