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    College Board piloting first AP African American Studies course

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  • Biden to tour Hurricane Ian damage, meet with Florida Governor DeSantis

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  • Supreme Court hears arguments in Alabama racial gerrymandering case

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  • Fort Myers pediatric ICU nurse recounts Hurricane Ian

    03:56
  • Search continues for kidnapped California family

    03:15
  • Two more shootings linked to series of Stockton, California killings

    02:46
  • High schooler with cerebral palsy scores touchdown at homecoming game

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  • Big tech critic Meredith Whittaker becomes president of Signal

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  • New report details ‘intolerable’ systemic abuse in women’s soccer

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  • Bill Taylor: ‘Putin will look for a way out’ as Ukraine war wages on

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National Geographic recognizes Southern Ocean: Could fifth ocean be added to world maps?

01:46

The Southern Sea, which surrounds Antarctica, is officially being recognized by National Geographic as the Earth's fifth ocean. NBC News’ Denise Chow shares how this could affect world maps going forward.