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    Former U.N. climate chief: Exclude fossil fuel firms from climate talks

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  • Northern lights illuminate the skies over Minnesota

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  • Trailblazing NASA astronaut will be first woman on Lunar mission

    05:11
  • Paging Agent Mulder: NASA to use AI to study UFOs

    05:03
  • Pentagon unveils ‘one-stop shop’ site for non-classified UFO docs

    00:32
  • How a Long Island community is giving a boost to oyster population

    04:01
  • Bear necessities: How scientists are tracking Yellowstone’s grizzlies

    03:01
  • Loch Ness Monster hunters launch massive search to foster new interest

    04:11
  • NASA delays launch to International Space Station

    02:59
  • Where is Barbie Land? Neil deGrasse Tyson figured it out!

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  • Neil deGrasse Tyson shares tips on how to stargaze

    03:54
  • How educators are teaching science through skating and surfing

    04:20
  • Al Roker tests Neil deGrasse Tyson in weather-related space quiz

    01:26
  • Neil deGrasse Tyson talks India landing on the moon’s south pole

    02:57
  • Taking a rare look inside CDC mosquito lab as officials raise new West Nile virus concerns

    02:26
  • Record high water temperatures take toll on Florida's coral reefs

    01:56
  • Sunday marks 78 years since scientists first tested nuclear bomb

    01:34
  • Qantas orders 12 new airbus planes designed for 20-hour flights

    04:53
  • Scientist who lived underwater for 100 days recounts how his body changed

    03:15
  • Why the Canadian wildfire smoke turned the sky in NYC orange

    01:05

Chinese scientists successfully clone monkeys

00:51

The two healthy macaques, Zhong Zhong and Hua Hua, represent the first successful cloning of primates.