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    Hydeia Broadbent, HIV/AIDS activist, dies at 39

    02:19
  • Dr. Brooke Ellison, disability rights advocate, dies at 45

    02:17
  • Aston Barrett, bassist of Bob Marley and the Wailers, dies at 77

    01:51
  • Roger Donlon, first Vietnam War Medal of Honor recipient, dies

    02:21
  • Dr. Arno Penzias, who helped confirm Big Bang Theory, dies at 90

    02:01
  • Elmore Nickleberry, Memphis sanitation striker, dies at 92

    02:06
  • Naomi Feil, advocate for dementia care, dies at 91

    02:18
  • Richard Hunt, pioneering sculptor, dies at 88

    02:23
  • Legendary photographer Elliott Erwitt dies at 95

    02:21
  • Bronka Sundstrom, Holocaust survivor and mountaineer, dies at 98

    02:23
  • Mary Cleave, pioneering NASA astronaut, dies at 76

    02:10
  • Lyn McLain, ‘father of American youth orchestra,’ dies at 95

    01:50
  • Peter Tarnoff, US diplomat behind ‘Argo’ escape, dies at 86

    02:20
  • Wanda Półtawska, Holocaust survivor and friend to pope, dies

    02:13
  • Bertie Bowman, the longest-serving Black congressional staffer, dies at 92

    02:09
  • Hughes Van Ellis, Tulsa Massacre survivor, dies at 102

    02:05
  • Burkey Belser, who designed the nutrition facts label for food, dies at 76

    02:06
  • ‘SNL’ and Broadway costume designer Franne Lee dies at 81

    02:11
  • Karol Bobko, NASA’s first Challenger pilot, dies at 85

    02:06
  • Carol Duvall, HGTV’s ‘Queen of Crafts,’ dies at 97

    02:12

Dr. James Lovelock, scientist who created Gaia theory, dies at 103

02:27

Dr. James Lovelock was a groundbreaking environmental scientist who helped launch a movement. Lovelock developed the Gaia theory, which argues that Earth is a singular, self-sustaining organism and regulates its temperature and atmosphere to remain stable and support life unlike any other planet. Sunday TODAY’s Willie Geist remembers a life well lived.

Andrée Geulen, teacher who saved Jewish children, dies age 100