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    Yale researchers use new technology to restore dead pig cells

    07:07
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  • NASA's Webb Telescope marks a bold new era of space exploration 

    02:40
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  • Astrophysicist Neil deGrasse Tyson breaks down new telescope images released by NASA

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  • See the groundbreaking pics from NASA's most powerful telescope

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  • Hadron collider scientists discover three subatomic particles never seen before

    07:31
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  • Early human fossils found in South African cave dated one million years older than suspected

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  • How this high-tech batting cage is getting kids involved in STEM

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  • Did Chinese researchers pick up signals from alien civilizations?

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  • The search is on for woman rejected from NASA 60 years ago

    03:25
  • Chicago ‘rock’ stars discover space rocks at bottom of Lake Michigan

    03:02
  • NASA to join the search for answers about UFOs

    02:37
  • NASA scientists resynthesize black hole pressure waves to hear sound

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  • New alcohol sensors aim to end drunk driving accidents

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  • Boeing’s Starliner launches to International Space Station after delays

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  • University of Chicago seeks FDA approval to use skin grafts to treat addiction

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Tanks leaking at Hanford nuclear site

00:27

The leaking of radioactive liquids at the Hanford, Wash., Nuclear Reservation is more extensive than previously reported. NBC’s Lester Holt reports.