In 1978, Sally Ride, a PhD candidate at Standford University, responded to a newspaper ad to join the US astronaut program. She was accepted and be...
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Find out all about NASA in this out-of-this-world addition to the What Was? series. The National Aeronautics and Space Administration, better known...
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Learn more about what climate change means and how it's affecting our planet.The earth is definitely getting warmer. There's no argument about that...
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Readers will want to grab a telescope and explore the night skies after finishing this overview of our solar system.Our solar system consists of ei...
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Explore the frozen waters of Antarctica in this interactive book where YOU decide what happens next! Packed with 25 possible endings! Choose Your ...
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Learn about the origin, creation, and history of one of America’s most iconic landmarks—Mount Rushmore—in this detailed history for young readers, ...
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Isaac Newton was always a loner, preferring to spend his time contemplating the mysteries of the universe. When the plague broke out in London in 1...
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