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    Jon Stewart fights to help veterans exposed to burn pits (Part 1)

    04:10
  • Jon Stewart fights to help veterans exposed to burn pits (Part 2)

    02:53
  • Inside the effort to feed Florida's manatees (Part 1)

    02:58
  • Inside the effort to feed Florida's manatees (Part 2)

    01:02
  • 80 years after Pearl Harbor, survivors reflect on the day that changed history (Part 1)

    06:28
  • 80 years after Pearl Harbor, survivors reflect on the day that changed history (Part 2)

    06:29
  • Musicians spreading holiday cheer in hospitals across U.S. (Part 1)

    01:43
  • Musicians spreading holiday cheer in hospitals across U.S. (Part 2)

    02:17
  • Blood test detects over 50 types of cancer (Part 1)

    02:31
  • Blood test detects over 50 types of cancer (Part 2)

    01:28
  • How the elite U.S. Forest Service hotshots battle wildfires (Part 1)

    02:05
  • How the elite U.S. Forest Service hotshots battle wildfires (Part 2)

    02:08
  • Climate change in Guatemala: Between starvation and migration (Part 1)

    06:51
  • Climate change in Guatemala: Between starvation and migration (Part 2)

    05:11
  • A look at St. Louis' iconic Gateway Arch (Part 1)

    02:01
  • A look at St. Louis' iconic Gateway Arch (Part 2)

    01:58
  • Extended interview: Rita Moreno and Ariana DeBose on ‘West Side Story’ remake (Part 1)

    03:03
  • Extended interview: Rita Moreno and Ariana DeBose on ‘West Side Story’ remake (Part 2)

    03:18
  • Black playwrights take center stage on Broadway (Part 1)

    03:46
  • Black playwrights take center stage on Broadway (Part 2)

    02:24

Changemakers: Women of color in STEM (Part 2)

03:40

NBC News’ Rehema Ellis and former NASA Astronaut Dr. Mae Jemison talk about her hopes for the future of Black men and women in STEM, and the importance of holding educators responsible for amplifying their voices. Teen activist and aspiring astronaut Taylor Richardson joins the conversation to discuss why representation matters.