Explore your universe and learn about astronomy, the sun, planets and moons, stars, galaxies, space exploration and other topics. Common terms are defined in the Glossary.
Click anywhere on the picture to explore.
More Facts about Astronomy & Science
Astronomy Basics • Planet Lore • Space Exploration • Space Flight • Space Probes
Stars, Constellations, Galaxies & Nebulae • Star Maps • Telescopes in Space
Scientific Notation • World Time • Scavenger Hunt
Ask Cosmos • Awards & Recognition • Women in Astronomy
- "What makes astronomy so cool is that by studying the stars and outer space we learn so much about our own planet Earth and where we fit into the universe."
- -Bill Nye, The Science Guy
|Field Trip to Mars, Mars Features on Earth
is a self-guided excursion to view various sites located on or near the central plateau of Washington that correlate to features found on Mars.
Included is a section on volcanoes with a page about Mount St Helens, an active volcano that "blew its top" in 1980. Also included is information on Mars Pathfinder, earthquakes, giant floods, sand dunes, lava flows, dust devils, and geological background material. Click image or here to go to Field Trip to Mars.
|Click here to blast off!||Near-Earth Objects.|
|Measuring in Science. The data in the exploring pages are given in Metric and Scientific Notation. For a brief explanation of these terms, click to the Scientific Notation page.||
What time is it? Find out about time and how moon phases and eclipses are calculated here.
|Earn Awards or Scout Badges.
Many organizations give awards, certificates or other recognition.
Click to find out how.
Can't find an answer?
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|Help prevent light pollution. The United States at night, left, shows how much light comes from our cities. Not only can you have trouble seeing the stars at night but birds, insects and other animals are affected. For more information, click image or here to go to the International Dark-Sky Association.|
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For a more detailed tour of the solar system click here:
Views of the Solar System
Click below for versions in Spanish, Portuguese, French or German.
Kids' Cosmos… Expanding Minds Beyond the Limits of the Universe
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