Extras

    Video thumbnail: PBS NewsHour This retired astronaut captured hundreds of images in space

    PBS NewsHour

    This retired astronaut captured hundreds of images in space

    This retired astronaut captured hundreds of images in space

    This retired astronaut captured hundreds of images in space

    Video thumbnail: PBS NewsHour NASA looks to return astronauts to the moon

    PBS NewsHour

    NASA looks to return astronauts to the moon

    NASA looks to return astronauts to the moon

    NASA looks to return astronauts to the moon

    Video thumbnail: PBS NewsHour NASA opens a new collection of moon rocks to researchers

    PBS NewsHour

    NASA opens a new collection of moon rocks to researchers

    NASA opens a new collection of moon rocks to researchers

    NASA opens a new collection of moon rocks to researchers