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    American astronaut Frank Rubio returns to Earth after record-setting space mission

    01:44
  • NASA’s Frank Rubio returns to Earth after record 371 days in orbit

    00:37
  • How NASA will study long-awaited asteroid samples

    06:48
  • Richard Branson speaks about new initiative to tackle climate change

    04:25
  • NASA brings asteroid samples back to Earth for first time

    00:31
  • In historic mission, NASA space capsule returns carrying asteroid sample

    02:04
  • Richard Branson on new climate change coalition, return to space

    03:27
  • Watch: Asteroid sample collected by NASA returns to Earth

    01:21
  • Trailblazing NASA astronaut will be first woman on Lunar mission

    05:11
  • Meet the NASA astronaut set to make history in space

    04:53
  • Paging Agent Mulder: NASA to use AI to study UFOs

    05:03
  • NASA astronaut breaks record for longest spaceflight by an American

    01:41
  • Japan launches HII-A rocket to explore the origins of the universe

    01:17
  • SpaceX capsule carrying 4 crew members returns safely to Earth

    00:37
  • Karol Bobko, NASA’s first Challenger pilot, dies at 85

    02:06
  • Pentagon unveils ‘one-stop shop’ site for non-classified UFO docs

    00:32
  • Searching for evidence of interstellar objects

    07:17
  • India’s moon rover takes first steps on south pole’s surface

    01:04
  • NASA delays launch to International Space Station

    02:59
  • Al Roker tests Neil deGrasse Tyson in weather-related space quiz

    01:26

Tributes pour in for first US woman in space

01:35

Sally Ride, the first US woman in space, captured the nation's imagination with her historic journey into space. NBC’s Rehema Ellis looks back at the intrepid astronaut’s life and legacy after she lost her battle with pancreatic cancer.