Image: Astronauts teach "lost lessons" to honor Challenger Shuttle astronaut, Christa McAuliffe
January 30, 2018
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Image: Four Olympic stadiums with unexpected afterlives
January 25, 2018
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Image: The oldest known butterflies existed before flowers
January 24, 2018
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Image: Meet Riley, the puppy training to sniff out bugs in Boston's Museum of Fine Arts
January 22, 2018
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Image: The most notorious poet in 18th century America was an enslaved teenager you've never heard of
January 18, 2018
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Image: How peacock spiders make rainbows on their backsides
January 16, 2018
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Image: Tootsie Rolls were WWII energy bars
January 12, 2018
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Image: Martin Luther King’s 1st “I Have a Dream” speech
January 10, 2018
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Image: This dinosaur was much fuzzier than scientists once thought
January 08, 2018
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Image: Martin Luther King, Jr. found inspiration in Henry David Thoreau
January 04, 2018
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