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On August 21, 2017, millions of Americans will witness the first total solar eclipse to cross the continental United States in 99 years. As in all total solar eclipses, the moon will block the sun, revealing its ethereal outer atmosphere—its corona—in a wondrous celestial spectacle. While hordes of citizens prepare to flock to the eclipse’s path of totality, scientists, too, are staking out spots for a very different reason: to investigate the secrets of the sun’s elusive atmosphere. During the eclipse’s precious seconds of darkness, they will shed light on how our sun works, how it can produce deadly solar storms, and why it’s atmosphere is so hot. NOVA investigates the storied history of solar eclipse science and joins both seasoned and citizen-scientists alike as they don their eclipse glasses and tune their telescopes for the eclipse over America.
Published: July 12, 2017
The country’s first solar eclipse in 99 years will cast a light on the Sun’s secrets.
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- Running Time:
- 53:10
Everyone knows Neil Armstrong was the first to set foot on the moon. But this modest and unassuming man was determined to stay out of the spotlight. Now, for the first time, NOVA presents an intimate portrait of Armstrong through interviews with his family and friends, many of whom have never spoken publicly before. Discover and relive Armstrong's achievements before and after Apollo, from his time as a Navy combat veteran and later as a pioneer of high-speed flight to his leading role in the inquiry into the Challenger disaster and his efforts to encourage young people to take to the skies. Along the way, we learn how Armstrong's life became the inspiring story of heroic risk-taking and humble dedication that ultimately advanced humanity's adventure in space.
Published: March 2, 2016
He risked his life for the nation and became a world icon, but who was Neil Armstrong?
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- Running Time:
- 53:37
On July 14, 2015, the New Horizons spacecraft, one of the most advanced ever built, is scheduled to fly by Pluto to take the very first detailed images of the dwarf planet. After nine years and 3 billion miles, we will finally get a close look at this strange, icy world, but only if the craft can survive the final, treacherous leg of its journey, which could take it through a dangerous field of debris. If it does, New Horizons is poised to make dramatic new discoveries, not just about Pluto, but about the vast realm of icy bodies lurking beyond Neptune, relics of the earliest days of the solar system’s formation. Back on Earth, the planetary scientists who have spent decades working on this mission anxiously await a signal from their spacecraft. Our cameras will be there to witness the moment. If all goes well, we’ll see Pluto’s mysterious surface in unprecedented detail and learn new secrets about other alien worlds at the far limits of our solar system.
Published: July 15, 2015
Watch as the New Horizons spacecraft captures our first clear view of Pluto’s icy surface.
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- Full Episode
- Running Time:
- 53:37
Twenty-five years ago, NASA launched one of the most ambitious experiments in the history of astronomy: the Hubble Space Telescope. In honor of Hubble's landmark anniversary, NOVA tells the remarkable story of the telescope that forever changed our understanding of the cosmos. But Hubble's early days nearly doomed it to failure: a one-millimeter engineering blunder had turned the billion-dollar telescope into an object of ridicule. It fell to five heroic astronauts in a daring mission to return Hubble to the cutting edge of science. This single telescope has helped astronomers pinpoint the age of the universe, revealed the birthplace of stars and planets, advanced our understanding of dark energy and cosmic expansion, and uncovered black holes lurking at the heart of galaxies. Join NOVA for the story of this magnificent machine and its astonishing discoveries.
Published: April 22, 2015
Follow the historic rescue of Hubble—the space telescope that unveiled the cosmos.
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- Full Episode
- Running Time:
- 53:07
It's a golden age for planet hunters: NASA's Kepler mission has identified more than 3,500 potential planets orbiting stars beyond our Sun. Some of them, like a planet called Kepler-22b, might even be able to harbor life. How did we come upon this distant planet? Combining startling animation with input from expert astrophysicists and astrobiologists, "Alien Planets Revealed" takes viewers on a journey along with the Kepler telescope. How does the telescope look for planets? How many of these planets are like our Earth? Will any of these planets be suitable for life as we know it? Bringing the creative power of veteran animators together with the latest discoveries in planet-hunting, "Alien Planets Revealed" shows the successes of the Kepler mission, taking us to planets beyond our solar system and providing a glimpse of creatures we might one day encounter.
Published: April 1, 2015
Are we alone—and if not, what might the inhabitants of far-flung worlds look like?
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- Full Episode
- Running Time:
- 52:52
The first stage in human flight didn’t begin with the Wright brothers at Kitty Hawk, but with daring inventors and aeronauts in 18th century Paris. In a period of just 19 months, humanity not only left the ground for the first time—a moment as significant as the Apollo moon landing—but thanks to a handful of brilliant and colorful pioneers, developed all the essential features of today's hot air and gas balloons. Their exploits fascinated Benjamin Franklin, who was serving in Paris as the American ambassador. He reported that these early flights brought tens of thousands of citizens into the streets to watch the spectacle. To explore this burst of innovation, NOVA recreates key flights, including the world’s first manned voyage that took place on November 21, 1783. Joining the team will be a descendant of the Montgolfier brothers, inventors of the hot-air balloon, who will build an accurate replica of the fragile paper and canvas craft using 18th century tools and materials. NOVA reveals the secrets of how the Montgolfiers invented flight and relives the experiences of the balloon pioneers who left Earth for the first time.
Published: October 22, 2014
Experts recreate the French's daring first manned flights, which Franklin had chronicled.
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- Full Episode
- Running Time:
- 53:06
It contains 99.9 percent of all the matter in our solar system and sheds hot plasma at nearly a million miles an hour. The temperature at its core is a staggering 27 million degrees Fahrenheit. It convulses, it blazes, it sings. You know it as the sun. Scientists know it as one of the most amazing physics laboratories in the universe. Now, with the help of new spacecraft and Earth-based telescopes, scientists are seeing the sun as they never have before and even recreating what happens at its very center in labs here on Earth. Their work will help us understand aspects of the sun that have puzzled scientists for decades. But more critically, it may help us predict and track solar storms that have the power to zap our power grid, shut down telecommunications, and ground global air travel for days, weeks, or even longer. Such storms have happened before—but never in the modern era of satellite communication. "Secrets of the Sun" reveals a bright new dawn in our understanding of our nearest star—one that might help keep our planet from going dark.
Published: April 25, 2012
With new tools, scientists are striving to better grasp our star and its potentially widely destructive solar storms.
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- Full Episode
- Running Time:
- 1:42:17
Take a spectacular trip to distant realms of our solar system to discover where secret forms of life may lie hidden. Combining the latest telescope images with dazzling animation, this program immerses audiences in the sights and sounds of alien worlds, while top astrobiologists explain how these places are changing how we think about the potential for life in our solar system. We used to think our neighboring planets and moons were fairly boring—mostly cold, dead rocks where life could never take hold. Today, however, the solar system looks wilder than we ever imagined.
Published: October 19, 2011
Scientists are on the verge of answering one of the greatest questions in history: Are we alone?
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- Full Episode
- Running Time:
- 51:57
After four decades of fly-by probes, orbiters, landers, and rovers, the quest for life on Mars is as tantalizing as ever. NOVA goes behind the scenes of the latest NASA missions to the Red Planet to reveal new clues and challenges on the road to answering this ultimate question. With unique access to the NASA Phoenix and Mars Exploration Rover missions, NOVA shows scientists and engineers in action, directing the operations of spacecraft millions of miles away, as the robotic explorers drill into rock, claw into soil, analyze samples, and trundle across the rock-strewn landscape in search of signs that Mars once or maybe even still harbors some form of life.
Published: August 10, 2011
The decades-long search for life on the Red Planet heats up with the discovery of frozen water.
Video
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- Full Episode
- Running Time:
- 53:06
Can humans survive a trip to Mars and back that could take two to three years? This episode of NOVA scienceNOW examines all of the perils of this journey, including deadly meteoroids, bone and muscle deterioration, and cosmic radiation. Host Neil deGrasse Tyson checks in with scientists who are developing new ways to keep astronauts alive on such a journey. Among the innovations covered are meteoroid-proof materials, new space foods and spacesuits, and novel modes of transport, such as plasma rockets. This episode also profiles young female scientist and daredevil Vandi Verma, part of the team that drives the Mars rovers on the martian surface.
Published: January 11, 2011
See new space suits, foods, and rockets that may support future Mars-bound astronauts, and meet a Mars rover driver.
Video
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- Full Episode
- Running Time:
- 53:37
Astronomers are closing in on the proof they've sought for years that one of the most destructive objects in the universe—a supermassive black hole—lurks at the center of our own galaxy. Could it flare up and consume our entire galactic neighborhood? Join NOVA on a mind-bending investigation into one of the most bizarre corners of cosmological science: black hole research. From event horizon to singularity, the elusive secrets of supermassive black holes are revealed through stunning computer-generated imagery, including an extraordinary simulation of what it might look like to fall into the belly of such an all-devouring beast.
Published: October 31, 2006
Does a supermassive black hole lurk at the center of our galaxy?
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