Cosmic Journeys

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Birth of the Moon
Episode overview
Decades ago, we sent astronauts to the moon as a symbol of confidence in the face of the great cold war struggle. Landing on the moon was a giant leap for mankind. But it’s what the .. show full overview
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Attack of the Sun
Episode overview
Back then, we got ready for it… by shutting down satellites that were vulnerable to high levels of radiation. But no one expected this. In what should have been a low point in solar .. show full overview
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Super Hurricanes
Episode overview
Why some tropical storms erupt into monster hurricanes capable of wrecking coastlines. Can they be predicted? September 12th, 2008. A hurricane named Ike is headed toward the beaches of .. show full overview
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Saturn's Mysterious Moons
Episode overview
Almost seven years later, on the first of July 2004, the Cassini probe entered the orbit of Saturn. It then began to compile what has become one of the greatest photographic collections .. show full overview
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The Largest Black Holes In The Universe
Episode overview
Our Milky Way may harbor millions of black holes… the ultra dense remnants of dead stars. But now, in the universe far beyond our galaxy, there’s evidence of something far more ominous. .. show full overview
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How Large Is The Universe?
Episode overview
The universe has long captivated us with its immense scales of distance and time. How far does it stretch? Where does it end, and what lies beyond its star fields and streams of galaxies .. show full overview
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When Will Time End
Episode overview
How long will the Universe as we know it survive? The answer depends on whether Stephen Hawking's theory about how black holes decay is right.
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The Incredible Journey Of Apollo 12
Episode overview
Earth. November 14, 1969. Three astronauts, with spacesuits, food, water, and a battery of scientific and communications equipment, prepared to fly to the moon. Thousands gathered at the .. show full overview
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Supermassive Black Hole in the Milky Way Galaxy
Episode overview
From a distance, our galaxy would look like a flat spiral, some 100,000 light years across, with pockets of gas, clouds of dust, and about 400 billion stars rotating around the galaxys .. show full overview
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Mars: Earth That Never Was
Episode overview
Just about every two years, the planet Mars makes its closest approach to Earth around 36 million miles. Thats when we pack our robotic emissaries off to the Red Planet, timing their launches to spend the least effort to get there.
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The Search For Earth Like Planets
Episode overview
The search for Earth-like planets is reaching a fever-pitch. Does the evidence so far help shed light on the ancient question: Is the galaxy filled with life, or is Earth just a .. show full overview
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Voyage To Pandora
Episode overview
Pandora is the idyllic blue world featured in the movie Avatar. Its location is a real place: Alpha Centauri, the nearest star to our Sun and the most likely destination for our first journey beyond the solar system.
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Venus: Death of a Planet
Episode overview
Why did Earth thrive and our sister planet, Venus, died? From the fires of a sun’s birth… twin planets emerged. Then their paths diverged. Nature draped one world in the greens and blues .. show full overview
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The Most Powerful Objects in the Universe
Episode overview
How does energy stitch the cosmos together, and how do we fit within it? We now climb the power scales of the universe, from atoms, nearly frozen to stillness, to Earth’s largest .. show full overview
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Is the Universe Infinite?
Episode overview
From intensive computer modeling, and myriad close observations, they’ve uncovered important clues to its ongoing evolution. Many now conclude that what we can see, the stars and .. show full overview
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Alien Planets & Eyeball Earths
Episode overview
Instead, astronomers have glimpsed a diverse planetary zoo, with giant planets in wide orbits around their parent stars, others that swing in so close they leave a comet-like tail, or .. show full overview
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The Riddle of AntiMatter
Episode overview
Scientists are now focusing their most powerful technologies on an effort to figure out exactly what happened. Our understanding of cosmic history hangs on the question: how did matter .. show full overview
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Mysteries of a Dark Universe
Episode overview
Is the universe bursting at the seams? Or is nature somehow fooling us? The astronomers whose data revealed this accelerating universe have been awarded the Nobel Prize for .. show full overview
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Crashing Into The Moon
Episode overview
There was a time when only government agencies had the ability to blast rockets into space, or send missions to worlds beyond our own. These days, countries around the world are .. show full overview
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Birth of a Black Hole
Episode overview
Far out in space, in the center of a seething cosmic maelstrom. Extreme heat. High velocities. Atoms tear, and space literally buckles. Photons fly out across the universe, energized to .. show full overview
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Solar Superstorms
Episode overview
Modern science has linked polar light shows, called auroras, to vast waves of electrified gas hurled in our direction by the sun. Today, researchers from a whole new generation see this .. show full overview
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Voyager: Journey to the Stars
Episode overview
Now tens of billions of kilometers from Earth, the two Voyager spacecraft are streaking out into the void. What will we learn about the Galaxy, the Universe, and ourselves from Voyager's epic Journey to the stars?
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Earth in 1000 Years
Episode overview
This edition of COSMIC JOURNEYS explores the still unfolding story of Earth's past and the light it sheds on the science of climate change today. While that story can tell us about the .. show full overview
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Reinventing Space Flight
Episode overview
Follow Dr. Ben Longmier and his team into the rugged Alaskan wilderness on a quest to build a whole new type of rocket engine. Their goal is to test sensitive components by launching .. show full overview
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Supervolcanoes
Episode overview
They are eruptions so vast, so Earth-shattering, they have changed the history of our planet. Climate collapse. Toxic turmoil. Mass extinction. Worse than a killer asteroid, or nuclear .. show full overview
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Fate of Antarctica
Episode overview
The episode of Cosmic Journeys explores the intersection of paleoclimate and current climate science. Through its turbulent history, Antarctica has played an important role in the .. show full overview
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LIFE: Destiny or Chance?
Episode overview
Are the universe and its physical laws so fine-tuned that the rise of life is inevitable? Or is life a fluke, a lucky roll of cosmic dice? We look for the answer in the rise of two .. show full overview
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Interstellar Flight
Episode overview
Cosmic Journeys explores the challenges of interstellar flight and the technological possibilities that may one day send us on a long voyage out into the galaxy. What imperatives will .. show full overview
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The Age of Hubble
Episode overview
An army of high tech telescopes is capturing photons racing through space, measuring their energies and pinpointing their sources. Led by Hubble in space, they are reeling in enormous .. show full overview
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Hubble: Universe in Motion
Episode overview
Since its launch 25 Years ago, the Hubble Telescope has returned images of unprecedented beauty of a dynamic and changing universe. In this episode of COSMIC JOURNEYS, Hubble’s most .. show full overview
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SuperTornado: Anatomy of a MegaDisaster
Episode overview
May 22nd, 2011. A powerful tornado cut a mile-wide swath through Joplin, Missouri, the costliest and one of the deadliest tornado disasters ever. What did scientists learn when they peered into the realm of this SuperTornado?
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The Improbable Rise of Planet Earth
Episode overview
Planet hunters have detected nearly 5000 confirmed and candidate planets beyond our solar system. Most sun-like stars, it seems, are ringed with giant planets that crowd their parent .. show full overview

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