Science and Nature

NOVA

NOVA brings you stories from the frontlines of science and engineering, answering the big questions of today and tomorrow, from how our ancestors lived, to whether parallel universes exist, to how technology will transform our lives. Visit the official website to watch full-length documentaries, or explore our world through short-form video, on our digital publication NOVA Next.

Looking for Life on Mars

53m 47s

NASA launches its most ambitious hunt for traces of life on Mars, landing a car-sized rover in a rocky, ancient river delta. The rover will stow samples for possible return to Earth and test technology that may pave the way for human travel to Mars.

Episodes

  • Looking for Life on Mars: asset-mezzanine-16x9

    Looking for Life on Mars

    S48 E2 - 53m 47s

    NASA launches its most ambitious hunt for traces of life on Mars, landing a car-sized rover in a rocky, ancient river delta. The rover will stow samples for possible return to Earth and test technology that may pave the way for human travel to Mars.

  • Secrets in our DNA: asset-mezzanine-16x9

    Secrets in our DNA

    S48 E1 - 53m 26s

    Some 30 million Americans have sent their DNA to be analyzed by companies like 23andMe and AncestryDNA. But what happens once the sample is in the hands of testing companies, and how accurate are their results? NOVA explores the power of genetic data to reveal family connections, ancestry, and health risks—and even solve criminal cold cases.

Extras + Features

  • Fighting for Fertility Preview: asset-mezzanine-16x9

    Fighting for Fertility Preview

    S48 E5 - 28s

    What causes infertility, and how can assisted reproductive technologies help? Follow the journeys of people navigating fertility challenges from structural inequalities and racism to falling sperm counts, egg freezing, and IVF.

  • Reef Rescue Preview: asset-mezzanine-16x9

    Reef Rescue Preview

    S48 E4 - 28s

    If oceans continue to warm at the current pace, coral reefs could be wiped out by the end of the century. But scientists from around the globe are rushing to help corals adapt to a changing climate through assisted evolution.

  • Picture a Scientist Preview: asset-mezzanine-16x9

    Picture a Scientist Preview

    S48 E3 - 29s

    Women make up less than a quarter of STEM professionals in the United States, and numbers are even lower for women of color. But a growing group of researchers is exposing longstanding discrimination and making science more inclusive.

  • Looking for Life on Mars Preview: asset-mezzanine-16x9

    Looking for Life on Mars Preview

    S48 E2 - 30s

    Follow along as NASA launches the Mars 2020 Mission, perhaps the most ambitious hunt yet for signs of ancient life on Mars. In February 2021, the spacecraft will blaze into the Martian atmosphere at some 12,000 miles per hour and attempt to lower the Perseverance Rover into the rocky Jezero Crater, home to a dried-up river delta scientists think could have harbored life.

  • Why NASA is Back on Mars: asset-mezzanine-16x9

    Why NASA is Back on Mars

    S48 E2 - 5m 10s

    This NASA rover landed on Mars, more than 130 million miles from Earth. It’s task? To continue the search for past life on the red planet.

  • This NASA Scientist Helps Prevent Mars from Contamination: asset-mezzanine-16x9

    This NASA Scientist Helps Prevent Mars from Contamination

    S48 E2 - 4m 58s

    The spacecraft has to be extremely clean. The entire spacecraft—that includes the rover, the heat shield, the descent stage, and back shell—must contain less than 500,000 bacterial endospores, or spores. Just to give you an idea, a teaspoon of seawater has ten times more bacteria.

  • Secrets in our DNA Preview: asset-mezzanine-16x9

    Secrets in our DNA Preview

    S48 E1 - 27s

    Some 30 million Americans have sent their DNA to be analyzed by companies like 23andMe and AncestryDNA. But what happens once the sample is in the hands of testing companies, and how accurate are their results? NOVA explores the power of genetic data to reveal family connections, ancestry, and health risks—and even solve criminal cold cases.

  • Half Sisters Unite Thanks to DNA Testing: asset-mezzanine-16x9

    Half Sisters Unite Thanks to DNA Testing

    S48 E1 - 4m 19s

    Half-sisters share their unlikely story of finding one another through genetic testing, and what they learned about their family history along the way.

  • This University Monitors COVID-19 Through Saliva Testing: asset-mezzanine-16x9

    This University Monitors COVID-19 Through Saliva Testing

    S48 - 6m 53s

    One out of 50 COVID-19 tests in the U.S. are processed at the University of Illinois at Urbana-Champaign. Here's how its researchers are tracking the spread of the coronavirus on campus, and how the University became a model of testing for other flagship universities.

Schedule

  • Image
    NOVA: TVSS: Iconic

    NOVA

    Nature's Fear Factor

    Wednesday
    Apr 14

    1 Hour

    Scientists reintroduce wild dogs to Mozambique's Gorongosa National Park to see if it helps restore balance to the entire ecosystem.
  • Image
    NOVA: TVSS: Iconic

    NOVA

    Picture a Scientist

    Wednesday
    Apr 14

    2 Hours

    Women make up less than one-quarter of the amount of people employed in STEM, and the number is even smaller for women of color.
  • Image
    NOVA: TVSS: Iconic

    NOVA

    Picture a Scientist

    Wednesday
    Apr 14

    2 Hours

    Women make up less than one-quarter of the amount of people employed in STEM, and the number is even smaller for women of color.
  • Image
    NOVA: TVSS: Iconic

    NOVA

    Picture a Scientist

    Thursday
    Apr 15

    2 Hours

    Women make up less than one-quarter of the amount of people employed in STEM, and the number is even smaller for women of color.
  • Image
    NOVA: TVSS: Iconic

    NOVA

    Picture a Scientist

    Thursday
    Apr 15

    2 Hours

    Women make up less than one-quarter of the amount of people employed in STEM, and the number is even smaller for women of color.
  • Image
    NOVA: TVSS: Iconic

    NOVA

    Picture a Scientist

    Thursday
    Apr 15

    2 Hours

    Women make up less than one-quarter of the amount of people employed in STEM, and the number is even smaller for women of color.
  • Image
    NOVA: TVSS: Iconic

    NOVA

    Picture a Scientist

    Friday
    Apr 16

    2 Hours

    Women make up less than one-quarter of the amount of people employed in STEM, and the number is even smaller for women of color.
  • Image
    NOVA: TVSS: Iconic

    NOVA

    Picture a Scientist

    Friday
    Apr 16

    2 Hours

    Women make up less than one-quarter of the amount of people employed in STEM, and the number is even smaller for women of color.
  • Image
    NOVA: TVSS: Iconic

    NOVA

    Picture a Scientist

    Sunday
    Apr 18

    2 Hours

    Women make up less than one-quarter of the amount of people employed in STEM, and the number is even smaller for women of color.
  • Image
    NOVA: TVSS: Iconic

    NOVA

    Back to the Moon

    Monday
    Apr 19

    1 Hour

    Fifty years after humans first stepped foot on the moon, engineers, scientists and entrepreneurs engage in new discoveries to make life on the moon a reality.
  • Image
    NOVA: TVSS: Iconic

    NOVA

    Making North America: Origins

    Monday
    Apr 19

    1 Hour

    The shaping of North America, including palm trees that once thrived in Alaska and an eruption that nearly tore the Midwest in two.
  • Image
    NOVA: TVSS: Iconic

    NOVA

    Making North America: Life

    Tuesday
    Apr 20

    1 Hour

    The intertwined story of life and the landscape in North America -- from origins to dinosaurs and an ancient primate invasion.
  • Image
    NOVA: TVSS: Iconic

    NOVA

    Making North America: Human

    Wednesday
    Apr 21

    1 Hour

    From Ice Age to the oil boom, humans face challenges and uncover wealth hidden in North America's landscape.
  • Image
    NOVA: TVSS: Banner-L1

    NOVA

    Reef Rescue

    Wednesday
    Apr 21

    1 Hour

    Marine biologists from the Bahamas to Christmas Island to Australia fight against the clock to save the coral reefs from extinction.
  • Image
    NOVA: TVSS: Banner-L1

    NOVA

    Reef Rescue

    Wednesday
    Apr 21

    1 Hour

    Marine biologists from the Bahamas to Christmas Island to Australia fight against the clock to save the coral reefs from extinction.
  • Image
    NOVA: TVSS: Banner-L1

    NOVA

    Reef Rescue

    Thursday
    Apr 22

    1 Hour

    Marine biologists from the Bahamas to Christmas Island to Australia fight against the clock to save the coral reefs from extinction.
  • Image
    NOVA: TVSS: Banner-L1

    NOVA

    Reef Rescue

    Thursday
    Apr 22

    1 Hour

    Marine biologists from the Bahamas to Christmas Island to Australia fight against the clock to save the coral reefs from extinction.
  • Image
    NOVA: TVSS: Banner-L1

    NOVA

    Reef Rescue

    Thursday
    Apr 22

    1 Hour

    Marine biologists from the Bahamas to Christmas Island to Australia fight against the clock to save the coral reefs from extinction.
  • Image
    NOVA: TVSS: Banner-L1

    NOVA

    Reef Rescue

    Friday
    Apr 23

    1 Hour

    Marine biologists from the Bahamas to Christmas Island to Australia fight against the clock to save the coral reefs from extinction.
  • Image
    NOVA: TVSS: Banner-L1

    NOVA

    Reef Rescue

    Friday
    Apr 23

    1 Hour

    Marine biologists from the Bahamas to Christmas Island to Australia fight against the clock to save the coral reefs from extinction.

WETA Passport

Stream tens of thousands of hours of your PBS and local favorites with WETA Passport whenever and wherever you want. Catch up on a single episode or binge-watch full seasons before they air on TV.