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In April of 2025, the Hubble Space Telescope celebrated its 35th birthday. A telescope is a tool that makes far-away objects seem closer. Hubble is a special kind of telescope that is in space. It ... Read more -
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Labor Day is a holiday [a day when schools and businesses close]. It celebrates American workers. Schools close for Labor Day. Labor unions suggested Labor Day. Labor unions are groups of workers. They make sure ... Read more -
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