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Wikipedia: National Historic Landmarks in California: Pioneer Deep Space Station

For Students 9th - 10th
NASA's Deep Space Network for tracking unmanned spacecraft in deep space was inaugurated when this antenna became operational in 1958.
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German Aerospace Center: Human Spaceflight Missions

For Students 9th - 10th
This site, which is provided for by the German Aerospace Center, contains detailed information on missions to Mir from March '92 to March '97 displayed in the links below.
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Curated OER

Science Kids: Science Images: Earth Horizon

For Students 9th - 10th
This beautiful NASA image taken from the International Space Station as it makes its way over the Pacific Ocean shows the Earth horizon illuminated by light from the Sun.