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On any clear night, the night sky offers an ever-changing display of fascinating objects, visible to the naked eye:... Read More >>
Early humans turned what they could see above them into rich creation myths. Later philosophers created cosmologies... Read More >>
From the shocking launch of the Soviet satellite Sputnik and the subsequent acceleration of the American space program... Read More >>
Luminous spheres of plasma held together by their own gravity, each star is born out of the collapse of gaseous... Read More >>
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The Sun is one of the most important parts of the solar system, but it also holds many mysteries. With the help... Read More >>
Whether it's hyperdrive in Star Wars or warp speed in Star Trek, most science-fiction lovers know that in order... Read More >>
The first time the term ""tractor beam"" was used was in 1931. Since then, tractor beams have been used in many... Read More >>
Solar sails use the sun's energy to fly spacecraft, or ""flight by light."" It sounds like something out of a science... Read More >>
How big is a star? How many are in our galaxy? Learn all about the life of stars through engaging, age-appropriate... Read More >>
Did you know the moon orbits Earth? It's held in place by gravity and shines with sunlight! Through vibrant photos... Read More >>
Did you know the sun is actually a star? Our solar system revolves around it! Age-appropriate critical thinking... Read More >>
What's it like to be an astronaut? How do they train? What's it like to travel in space? What kind of work do astronauts... Read More >>
Earth is pretty incredible! It's the only planet in our solar system humans can live on. Build nonfiction skills... Read More >>
Simple text and photographs describe the planet Venus. Read More >>