The Moon Hoax (1:01)
The moon was once believed to be inhabited by winged human beings and bouncing creatures. Timothy Dickinson tells us where this myth came from.
Videos (31)
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The Moon Hoax
The Moon HoaxVideo Clip (1:01)
Video Clip (1:01)
The moon was once believed to be inhabited by winged human beings and bouncing creatures. Timothy Dickinson tells us where this myth came from.
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Discovering the Next Earth
Discovering the Next EarthVideo Clip (3:01)
Video Clip (3:01)
NASA uses a space-based telescope to find planets that may be capable of sustaining life.
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The Age of Earth
The Age of EarthVideo Clip (2:59)
Video Clip (2:59)
How old is the Earth? It took scientists years to find out.
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Deepest Place on Earth
Deepest Place on EarthVideo Clip (3:36)
Video Clip (3:36)
The Marianas Trench is where the ocean floor disappears into the center of the earth and is known as the deepest place on earth.
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The Space Race
The Space RaceVideo Clip (2:58)
Video Clip (2:58)
The U.S. competition with the U.S.S.R. for technological dominance spurred the U.S. on to the first-ever landing on the Moon.
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What Put the Bang in the Big Bang?
What Put the Bang in the Big Bang?Video Clip (1:09)
Video Clip (1:09)
Find out what most physicists believe caused the "bang" when the universe came into being.
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Solar Eclipses
Solar EclipsesVideo Clip (1:02)
Video Clip (1:02)
Will solar eclipses eventually become a thing of the past? If so, when?
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What is the Volume of the Known Universe?
What is the Volume of the Known Universe?Video Clip (1:00)
Video Clip (1:00)
Ever wonder how immense the universe really is? Astrophysicist Alex Filippenko puts it in perspective.
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What is a White Hole?
What is a White Hole?Video Clip (0:57)
Video Clip (0:57)
We've all heard of black holes, but what exactly is a white hole?
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Phases of the Moon
Phases of the MoonVideo Clip (3:04)
Video Clip (3:04)
Backyard Astronomer video: The Phases of the Moon put on a fantastic show for astronomers and stargazers alike.
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Expansion, What Does it Apply to?
Expansion, What Does it Apply to?Video Clip (1:00)
Video Clip (1:00)
Does the expansion of the universe apply to our bodies, Earth and the solar system? Astrophysicist Alex Filippenko explains.
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What is Dark Energy?
What is Dark Energy?Video Clip (0:59)
Video Clip (0:59)
What role does dark energy play in the universe? Astrophysicist Alex Filippenko describes a discovery that changed our understanding of how the universe works.
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Where Do Quasars Originate?
Where Do Quasars Originate?Video Clip (1:01)
Video Clip (1:01)
Accelerating nearly as fast as the speed of light, where exactly do quasar jets form?
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Exploding Star Chemicals
Exploding Star ChemicalsVideo Clip (1:02)
Video Clip (1:02)
Are heavy chemical elements produced by star explosions? If so, how do we know this?
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Faster Than Light Expansion
Faster Than Light ExpansionVideo Clip (1:06)
Video Clip (1:06)
Is it possible for the universe to expand faster than the speed of light, or would that violate Einstein's Theory of Relativity?
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Matter or Energy: Which is More Plentiful?
Matter or Energy: Which is More Plentiful?Video Clip (1:01)
Video Clip (1:01)
Which is more abundant in the universe, matter or energy?
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Can Antimatter Naturally Occur?
Can Antimatter Naturally Occur?Video Clip (0:58)
Video Clip (0:58)
Astrophysicist Alex Filippenko explores whether antimatter can naturally occur in the universe and explains what exactly a positron is.
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Beyond the Big Bang: Copernicus
Beyond the Big Bang: CopernicusVideo Clip (4:25)
Video Clip (4:25)
In a History Beyond the Big Bang video, discover that beneath the marble floor of Frombork Church in northeastern Poland, inside a dusty crypt, local legend believes that the body of famed astronomer, Nicolas Copernicus, is buried.
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Beyond the Big Bang: Galileo Galilei
Beyond the Big Bang: Galileo GalileiVideo Clip (3:36)
Video Clip (3:36)
In a History Beyond the Big Bang video, discover that the sophisticated telescopes used by astronomers today to see distant galaxies are direct descendents of the humble lenses used by Galileo Galilei over four hundred years ago.
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Beyond the Big Bang: Sir Isaac Newton's Law of Gravity
Beyond the Big Bang: Sir Isaac Newton's Law of GravityVideo Clip (4:38)
Video Clip (4:38)
In this History Channel video clip on Isaac Newton, we learn a lot about the scientist who is said to be the smartest one to have ever lived. Learn a bit about gravity and Newton's analysis on the moon. His laws explain almost everything.
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Beyond the Big Bang: Einstein World
Beyond the Big Bang: Einstein WorldVideo Clip
Beyond the Big Bang shows us how Albert Einstein's theory of special relativity explored the link between space and time.
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Backyard Astronomer - Viewing the Planets
Backyard Astronomer - Viewing the PlanetsVideo Clip (3:03)
Video Clip (3:03)
Backyard Astronomer video: Viewing the Planets, the basic foundation of our Solar System.
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Space Race: Cold War Front
Space Race: Cold War FrontVideo Clip (4:21)
Video Clip (4:21)
A brief look at the Space Race, set to "Magic Carpet Ride" by Steppenwolf.
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How Russia Challenged the U.S. in the Space Race
How Russia Challenged the U.S. in the Space RaceVideo Clip (2:45)
Video Clip (2:45)
In this Tech Effect video, brought to you by the History Channel, Buzz Aldrin talks about how competition with the Soviets in the 1960s spurred the American development of the Saturn V rocket and created excitement around the space program.
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Earthquake in the Heartland
Earthquake in the HeartlandVideo Clip (2:31)
Video Clip (2:31)
Mega Disasters takes a look at how bad the ripple effect could be if an earthquake were to happen in Memphis, TN. If the seismic pressure were severe, states across the country could be in turmoil.
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Mega Disasters: San Francisco Earthquake
Mega Disasters: San Francisco EarthquakeVideo Clip (2:15)
Video Clip (2:15)
Multiple fault lines that run through California put San Francisco at risk for a catastrophic earthquake.
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Ask Steve: The Space Program
Ask Steve: The Space ProgramVideo Clip (1:34)
Video Clip (1:34)
In this video clip from Ask Steve, the reason for Americans interest in the Space Program was explored. It is explained that competition, and the technological wonder of the space race were some of the reasons for the Americans interest.
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Planet Earth
Planet EarthVideo Clip (2:56)
Video Clip (2:56)
Over billions of years, Earth has developed essential properties that allowed living organisms to form.
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John Glenn Orbits the Earth
John Glenn Orbits the EarthVideo Clip (2:37)
Video Clip (2:37)
Footage of John Glenn's historic orbit around the Earth on Friendship 7.
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Space: JFK's New Frontier
Space: JFK's New FrontierVideo Clip (3:55)
Video Clip (3:55)
On February 20, 1962, Colonel John Glenn became the first human to orbit the earth, launching the manned space program.
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Apollo 11 Moonwalk Montage
Apollo 11 Moonwalk MontageVideo Clip (2:00)
Video Clip (2:00)
See the highlights of the July 20, 1969 Apollo 11 moonwalk in newly restored raw footage. From NASA.
Photo Galleries (5)
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The Universe Season One
The Universe Season One(13 Photos)
13 Photos
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The Universe Season Two
The Universe Season Two(13 Photos)
13 Photos
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The Universe Season Three
The Universe Season Three(12 Photos)
12 Photos
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The Universe Season Four
The Universe Season Four(6 Photos)
6 Photos
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Earthquakes of the New Century
Earthquakes of the New Century(8 Photos)
8 Photos
Get the facts on the deadliest earthquakes to rattle the planet since the year 2000.
Speeches & Audio (8)
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Apollo 13 Emergency Radio Transmission
Apollo 13 Emergency Radio TransmissionAudio Clip (0:12)
Audio Clip (0:12)
On April 13, 1970, James Lovell, Jr., John Swigert, Jr., and Fred Haise, Jr., were en route to the Moon aboard Apollo 13 when disaster struck 200,000 miles from earth.
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Christmas Eve Broadcast to Earth
Christmas Eve Broadcast to EarthAudio Clip (0:36)
Audio Clip (0:36)
On December 24, 1968, astronauts Frank Borman, Jim Lovell and Bill Anders entered into lunar orbit aboard the Apollo 8 spacecraft. That evening, in a live radio and television transmission, Borman reads a passage from the Book of Genesis.
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John Glenn Returns to Space
John Glenn Returns to SpaceAudio Clip (0:46)
Audio Clip (0:46)
On October 29, 1998, the NASA Mission Control countdown of the launch of space shuttle Discovery remarks on the historic return to space by crew member John Glenn. Four decades earlier, Glenn had been the first American to orbit Earth.
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JFK on First American to Orbit Earth
JFK on First American to Orbit EarthAudio Clip (0:29)
Audio Clip (0:29)
On February 20, 1962, Lt. Col. John H. Glenn Jr. became the first American astronaut to orbit Earth. Within minutes of Glenn's safe emergence from his Mercury capsule, President John F. Kennedy tells the nation that America has reached a new ocean in its race to space.
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Yuri Gagarin Is First Man in Space
Yuri Gagarin Is First Man in SpaceAudio Clip (1:06)
Audio Clip (1:06)
On April 12, 1961, aboard the spacecraft Vostok 1, Soviet cosmonaut Yuri Gagarin became the first human to travel into space. A melodramatic telling details Gagarin's historic flight.
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Margaret Mead Speaks at First Earth Day
Margaret Mead Speaks at First Earth DayAudio Clip (0:44)
Audio Clip (0:44)
On April 22, 1970, noted anthropologist and outspoken environmentalist Margaret Mead inaugurates the first Earth Day, an event to increase public awareness of the world's environmental problems.
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Apollo 9 Completes Spacewalk
Apollo 9 Completes SpacewalkAudio Clip (0:48)
Audio Clip (0:48)
After Apollo 9's launch on March 3, 1969, the crew communicates with Mission Control from space. The Apollo 9 mission was a crucial test run for the Apollo 11 moon landing three months later.
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The First Space Flight by a Woman
The First Space Flight by a WomanAudio Clip (0:35)
Audio Clip (0:35)
Radio Moscow announces the historic flight of the first woman in outer space. On June 16, 1963, aboard Vostok 6, Soviet cosmonaut Valentina Tereshkova completed 48 orbits of Earth in 71 hours.
Interactives (2)
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Interactive Universe
Interactive UniverseInteractive
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Facts about the Universe
Facts about the UniverseInteractive
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