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    SAT going digital in 2024, ditching paper for laptops

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  • Meet the woman who created a curly hair empire from her kitchen

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  • 3 firefighters killed in Baltimore house fire

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  • ‘Jeopardy’ champ Amy Schneider sets record for 2nd longest winning streak

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  • Peloton under pressure after another controversial TV scene

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  • Navy jet crashes while trying to land on aircraft carrier

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How NASA is tracking glaciers to understand extreme weather

05:39

Kicking off “Top of the World,” a new series, NBC’s Jacob Soboroff heads to Greenland near to meet NASA scientists who are working around the clock to understand the causes of extreme weather, from droughts to fires to floods and hurricanes.