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    Scientists encouraged by discovery of huge coral reef off Tahiti

    00:48
  • What we know about the volcanic eruption in Tonga

    00:24
  • Groundbreaking surgery gives hope to people suffering from debilitating fainting

    04:04
  • Researchers at Stanford Medicine set record and crack medical mystery

    08:06
  • Doctors transplant pig heart into a human patient in last-ditch effort to save his life

    00:29
  • Egyptologists digitally 'unwrap' ancient pharaoh

    01:12
  • James Webb telescope launches into space

    01:44
  • Perfectly preserved dinosaur egg highlights link to modern birds

    00:59
  • Inside the modern marvel that could reshape our understanding of the universe

    04:00
  • Was the tornado disaster an effect of climate change? Scientists aim to find out

    04:46
  • Scientists study spectacular Great Barrier Reef spawning

    01:02
  • Early paper in Einstein's theory of relativity sells for $13M at auction

    01:29
  • Triceratops skeleton sold at Paris auction for over $7 million to American collector

    01:06
  • Choosing 'junk' over facts, Miami school forces vaccinated students to stay home for 30 days

    04:21
  • NASA launches asteroid probe named Lucy into the sky with diamonds

    01:13
  • Nobel Prize for chemistry awarded for development of tool to build molecules

    01:43
  • Nobel Prize awarded to two U.S. scientists for discovery of receptors of temperature, touch

    01:14
  • Watch: All-civilian SpaceX flight splashes down, four crew members safely exit capsule

    02:59
  • Inspiration4 astronauts give St. Jude’s patients a tour of Dragon capsule

    01:41
  • Exclusive: Inside look at world’s first 3D-printed rocket

    01:45

Scientists create test-tube burger with lab-grown beef

05:13

Using cattle stem cells and other ingredients, a group of scientists is working to convince the world that a more environmentally friendly meat is needed and can be made in the lab. NBC’s Keir Simmons reports and Dr. Mark Post, one of the scientists working on the project, discusses its importance.