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    Discussing the Impact of Climate Change: NASA’s New Project

    06:59
  • UAE launches first Arab-built moon rover

    04:28
  • 'This is the beginning of the new beginning': NASA admin on Artemis I mission

    03:19
  • Exploring Orion’s flight path around moon after historic mission

    02:44
  • Watch: Orion capsule makes splashdown after trip around the moon 

    02:43
  • NASA Administrator Bill Nelson: Artemis 1 spacecraft zooming back to Earth at 25,000 mph

    00:45
  • The Last Thing: “We rise together”

    02:46
  • NASA launches Artemis I mission in return to the moon

    04:18
  • Divers discover wreckage from 1986 Challenger disaster

    02:06
  • The Last Thing: The blood moon eclipse

    02:13
  • SpaceX launches mission with American and Russian crew

    04:15
  • Out In Space: Why NASA Crashed A Spacecraft Into An Asteroid

    05:37
  • Mind-bending NASA feat serves as inspiration for attempting important work

    04:27
  • NASA cancels second attempt at launching Artemis rocket

    01:47
  • Fmr. astronaut Mike Massiminio: NASA is treating Artemis I ‘like it’s a crewed launch’

    04:30
  • Mae Jemison: Artemis I is not just ‘stepping stone to Mars,’ but towards ‘a permanent Moon base’

    06:27
  • 'Not looking great' for NASA's Artemis 1 Monday launch

    04:51
  • How NASA’s Artemis 1 launch will prepare astronauts to return to the moon 

    05:52
  • The Last Thing: Return to the moon

    02:20
  • The Last Thing: Fifth rock from the sun

    02:29

Earth gains an extra second

02:35

Derrick Pitts, Franklin Institute Chief Astronomer, talks about the science behind the ‘leap second’ phenomenon.