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Asteroids - A New El Dorado In Space?
States and corporations around the world are now investing in the field of asteroid mining activity.
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The Age of Hubble
An army of high-tech telescopes, led by Hubble in space, has delivered an unprecedented chain of discoveries about how galaxies took shape, how stars live and die, and how life arose.

Planet Hunters
Astrophysicists at the forefront of the search consider the possibility of finding a planet like Earth among any of the bodies discovered by a new space-based telescope.

Exploring Venus
50 km above its desolate surface, the cool cloud tops of Venus offer a potential refuge for life.

Exploring Venus
Venus' surface is twice the temperature of a pizza oven; yet engineers push the boundaries of science to build probes that can deliver data from the depths of this crushing inferno; experts describe their battle strategies and technologies.

Cosmic Journeys
Ride along on dramatic balloon flights into colorful geomagnetic storms to help revolutionize space travel.

Cosmic Journeys
Scientists win the Nobel Prize in Physics for discovering that the universe is infinitely expanding in all directions, changing the field of cosmology.

Cosmic Journeys
Scientists study the history of Mars and explore the possibility that it once contained life.

Cosmic Journeys
Scientists look out deep into space hoping to measure the size of the universe based on the relatively miniscule portion of space observable from Earth.

Cosmic Journeys
Several countries plan to send spacecraft to the moon, potentially leading to a permanent human presence in space.

Cosmic Journeys
Scientists map the surface of the moon and piece together its history to determine how it formed and learn more about Earth's origins in the process.

Cosmic Journeys
Scientists probe the sun to learn more about coronal mass ejections, violent periodic outbursts that disrupt Earth's electrical systems.

Cosmic Journeys
Astronomers study stars and ultra-dense objects near the center of the Milky Way Galaxy to learn more about the black hole at its heart.

Super Tornado
The 2011 Super Tornado carved a mile wide path of destruction through Joplin, Missouri.

Lake Geneva: The Giant Tsunami
In 563 AD, Geneva was destroyed by a tsunami, and it could happen again.

Tsunami: Facing the Global Threat
Tsunamis are so sudden and powerful that in a matter of minutes, they can wipe out a coastline.

Megafires: The Global Threat
A group of experts studying the range and impact of megafires examine why these blazes are beyond control, what makes them insatiable and what is causing the crisis.

Megafires: The Global Threat
A team of experts introduces both ancient and newly discovered fire prevention techniques that can help confront the era of megafires to protect homes and families.

Floods - Challenging our Future
This episode focuses on the notion of urban resilience, visiting trailblazer cities around the world.

Exploring Venus
50 km above its desolate surface, the cool cloud tops of Venus offer a potential refuge for life.

Exploring Venus
Venus' surface is twice the temperature of a pizza oven; yet engineers push the boundaries of science to build probes that can deliver data from the depths of this crushing inferno; experts describe their battle strategies and technologies.

Cosmic Journeys
Ride along on dramatic balloon flights into colorful geomagnetic storms to help revolutionize space travel.

Cosmic Journeys
Scientists win the Nobel Prize in Physics for discovering that the universe is infinitely expanding in all directions, changing the field of cosmology.

Cosmic Journeys
Scientists study the history of Mars and explore the possibility that it once contained life.

Cosmic Journeys
Scientists look out deep into space hoping to measure the size of the universe based on the relatively miniscule portion of space observable from Earth.

Cosmic Journeys
Several countries plan to send spacecraft to the moon, potentially leading to a permanent human presence in space.

Cosmic Journeys
Scientists map the surface of the moon and piece together its history to determine how it formed and learn more about Earth's origins in the process.

Super Tornado
The 2011 Super Tornado carved a mile wide path of destruction through Joplin, Missouri.

Lake Geneva: The Giant Tsunami
In 563 AD, Geneva was destroyed by a tsunami, and it could happen again.

Tsunami: Facing the Global Threat
Tsunamis are so sudden and powerful that in a matter of minutes, they can wipe out a coastline.

Megafires: The Global Threat
A group of experts studying the range and impact of megafires examine why these blazes are beyond control, what makes them insatiable and what is causing the crisis.

Megafires: The Global Threat
A team of experts introduces both ancient and newly discovered fire prevention techniques that can help confront the era of megafires to protect homes and families.

Floods - Challenging our Future
This episode focuses on the notion of urban resilience, visiting trailblazer cities around the world.

World's Deadliest Weather
A tornado tears a mile-wide path through the American town of Moore, Okla., destroying two schools while the pupils are inside.

World's Deadliest Weather
A holiday cruise ship sails into a hurricane, terrifying 4,000 passengers as their cabins are plunged underwater.

World's Deadliest Weather
Hurricane Patricia rips apart a Mexican holiday resort sending tourists fleeing for their lives.

World's Deadliest Weather
In 2015, a massive earthquake in Nepal triggers a deadly avalanche on Mount Everest and mudslides that bury whole villages.

World's Deadliest Weather
Firefighters run out of water as an inferno rages through South Australia killing 70,000 livestock and chasing tourists at 30 miles per hour.

World's Deadliest Weather
A man films as a deadly tornado flattens his home and destroys every single house in a small town in Illinois.

Space Mistakes: How NASA Failures Furthered Exploration
NASA scrambles to avoid another space shuttle loss.

Space Mistakes: How NASA Failures Furthered Exploration
As the clock ticks toward the critical Mars launch window, NASA scrambles to fix a space mistake.

Space Mistakes: How NASA Failures Furthered Exploration
Despite multiple pressures, a shocking discovery causes NASA to cancel a historic launch.

Space Mistakes: How NASA Failures Furthered Exploration
A spacecraft free-falls from orbit and smashes into the ground when its parachute fails to deploy.

Space Mistakes: How NASA Failures Furthered Exploration
A harrowing space mistake leaves the solid rocket boosters hanging by a thread.

Asteroids - A New El Dorado In Space?
States and corporations around the world are now investing in the field of asteroid mining activity.

The Age of Hubble
An army of high-tech telescopes, led by Hubble in space, has delivered an unprecedented chain of discoveries about how galaxies took shape, how stars live and die, and how life arose.

Planet Hunters
Astrophysicists at the forefront of the search consider the possibility of finding a planet like Earth among any of the bodies discovered by a new space-based telescope.

World's Deadliest Weather
A tornado tears a mile-wide path through the American town of Moore, Okla., destroying two schools while the pupils are inside.

World's Deadliest Weather
A holiday cruise ship sails into a hurricane, terrifying 4,000 passengers as their cabins are plunged underwater.

World's Deadliest Weather
Hurricane Patricia rips apart a Mexican holiday resort sending tourists fleeing for their lives.

World's Deadliest Weather
In 2015, a massive earthquake in Nepal triggers a deadly avalanche on Mount Everest and mudslides that bury whole villages.

World's Deadliest Weather
Firefighters run out of water as an inferno rages through South Australia killing 70,000 livestock and chasing tourists at 30 miles per hour.

World's Deadliest Weather
A man films as a deadly tornado flattens his home and destroys every single house in a small town in Illinois.

Space Mistakes: How NASA Failures Furthered Exploration
NASA scrambles to avoid another space shuttle loss.

Space Mistakes: How NASA Failures Furthered Exploration
As the clock ticks toward the critical Mars launch window, NASA scrambles to fix a space mistake.

Space Mistakes: How NASA Failures Furthered Exploration
Despite multiple pressures, a shocking discovery causes NASA to cancel a historic launch.

Space Mistakes: How NASA Failures Furthered Exploration
A spacecraft free-falls from orbit and smashes into the ground when its parachute fails to deploy.

Space Mistakes: How NASA Failures Furthered Exploration
A harrowing space mistake leaves the solid rocket boosters hanging by a thread.

Asteroids - A New El Dorado In Space?
States and corporations around the world are now investing in the field of asteroid mining activity.

The Age of Hubble
An army of high-tech telescopes, led by Hubble in space, has delivered an unprecedented chain of discoveries about how galaxies took shape, how stars live and die, and how life arose.

Planet Hunters
Astrophysicists at the forefront of the search consider the possibility of finding a planet like Earth among any of the bodies discovered by a new space-based telescope.

Exploring Venus
50 km above its desolate surface, the cool cloud tops of Venus offer a potential refuge for life.

Exploring Venus
Venus' surface is twice the temperature of a pizza oven; yet engineers push the boundaries of science to build probes that can deliver data from the depths of this crushing inferno; experts describe their battle strategies and technologies.

Cosmic Journeys
Ride along on dramatic balloon flights into colorful geomagnetic storms to help revolutionize space travel.

Cosmic Journeys
Scientists win the Nobel Prize in Physics for discovering that the universe is infinitely expanding in all directions, changing the field of cosmology.

Cosmic Journeys
Scientists study the history of Mars and explore the possibility that it once contained life.

Cosmic Journeys
Scientists look out deep into space hoping to measure the size of the universe based on the relatively miniscule portion of space observable from Earth.

Cosmic Journeys
Several countries plan to send spacecraft to the moon, potentially leading to a permanent human presence in space.

Cosmic Journeys
Scientists map the surface of the moon and piece together its history to determine how it formed and learn more about Earth's origins in the process.

Cosmic Journeys
Scientists probe the sun to learn more about coronal mass ejections, violent periodic outbursts that disrupt Earth's electrical systems.

Cosmic Journeys
Astronomers study stars and ultra-dense objects near the center of the Milky Way Galaxy to learn more about the black hole at its heart.

Super Tornado
The 2011 Super Tornado carved a mile wide path of destruction through Joplin, Missouri.

Lake Geneva: The Giant Tsunami
In 563 AD, Geneva was destroyed by a tsunami, and it could happen again.

Tsunami: Facing the Global Threat
Tsunamis are so sudden and powerful that in a matter of minutes, they can wipe out a coastline.

Megafires: The Global Threat
A group of experts studying the range and impact of megafires examine why these blazes are beyond control, what makes them insatiable and what is causing the crisis.

Megafires: The Global Threat
A team of experts introduces both ancient and newly discovered fire prevention techniques that can help confront the era of megafires to protect homes and families.

Floods - Challenging our Future
This episode focuses on the notion of urban resilience, visiting trailblazer cities around the world.

Exploring Venus
50 km above its desolate surface, the cool cloud tops of Venus offer a potential refuge for life.

Exploring Venus
Venus' surface is twice the temperature of a pizza oven; yet engineers push the boundaries of science to build probes that can deliver data from the depths of this crushing inferno; experts describe their battle strategies and technologies.

Cosmic Journeys
Ride along on dramatic balloon flights into colorful geomagnetic storms to help revolutionize space travel.

Cosmic Journeys
Scientists win the Nobel Prize in Physics for discovering that the universe is infinitely expanding in all directions, changing the field of cosmology.

Cosmic Journeys
Scientists study the history of Mars and explore the possibility that it once contained life.

Cosmic Journeys
Scientists look out deep into space hoping to measure the size of the universe based on the relatively miniscule portion of space observable from Earth.

Cosmic Journeys
Several countries plan to send spacecraft to the moon, potentially leading to a permanent human presence in space.

Cosmic Journeys
Scientists map the surface of the moon and piece together its history to determine how it formed and learn more about Earth's origins in the process.

Super Tornado
The 2011 Super Tornado carved a mile wide path of destruction through Joplin, Missouri.

Lake Geneva: The Giant Tsunami
In 563 AD, Geneva was destroyed by a tsunami, and it could happen again.

Tsunami: Facing the Global Threat
Tsunamis are so sudden and powerful that in a matter of minutes, they can wipe out a coastline.

Megafires: The Global Threat
A group of experts studying the range and impact of megafires examine why these blazes are beyond control, what makes them insatiable and what is causing the crisis.

Megafires: The Global Threat
A team of experts introduces both ancient and newly discovered fire prevention techniques that can help confront the era of megafires to protect homes and families.

Floods - Challenging our Future
This episode focuses on the notion of urban resilience, visiting trailblazer cities around the world.

World's Deadliest Weather
A tornado tears a mile-wide path through the American town of Moore, Okla., destroying two schools while the pupils are inside.

Space Mistakes: How NASA Failures Furthered Exploration
NASA scrambles to avoid another space shuttle loss.

Space Mistakes: How NASA Failures Furthered Exploration
As the clock ticks toward the critical Mars launch window, NASA scrambles to fix a space mistake.

Space Mistakes: How NASA Failures Furthered Exploration
Despite multiple pressures, a shocking discovery causes NASA to cancel a historic launch.

Space Mistakes: How NASA Failures Furthered Exploration
A spacecraft free-falls from orbit and smashes into the ground when its parachute fails to deploy.

Cosmic Journeys
Exploring Venus' history and how it diverged from Earth in its formative years to become a hot, acidic, lifeless world.

Cosmic Journeys
Among the millions black holes in the Milky Way Galaxy are massive black holes with the greatest potential for destruction.

Cosmic Journeys
Astronomers explore the fundamental workings of the universe and its energies through programs including Fermi, Swift, Chandra, NuSTAR and Hubble.

Cosmic Journeys
Two Voyager spacecraft speed toward the boundary of the solar system, providing astronomers with valuable data about the cosmos.

Cosmic Journeys
The Kepler space telescope helps astronomers explore the galaxy for other planets like Earth that are capable of supporting life.

Cosmic Journeys
Scientists explore the mysterious substance called antimatter.

Sun and Man
Observing the burning star and learning from it as the Mayans did thousands of years ago, and as we still do today.

Sun and Man
Observing the burning star and learning from it as the Mayans did thousands of years ago, and as we still do today.

Mutant Weather
A warmer planet creates drier conditions and increasing lightning activity, causing catastrophic wildfires and other anomalies like "firenadoes"; megastorm events occur in California and Alberta, Canada.

Mutant Weather
Climate change means warmer ocean temperatures and higher sea levels which are intensifying hurricanes. Some experts believe we should add a Category six to the Saffir-Simpson hurricane wind scale.

Mutant Weather
The story of citizens most urgently affected by the melt in Alaska, faced with becoming climate refugees.

Mutant Weather
The story of devastating events in California and British Columbia, Canada.

Mutant Weather
Stories of major flooding in the southern US, forcing some people to leave the land their families have lived on for generations.

Battle For the Moon
The formation of NASA and launching of the Mercury Space Program.

Battle For the Moon
Reliving July 20, 1969, the day Neil Armstrong became the first man to walk on the moon.

The Voyage Of Curiosity
The Mars Science Laboratory named Curiosity roams the surface of Mars.

The Jupiter Enigma
Drawing on new findings from NASA's Juno mission, scientists are peering into Jupiter's stormy heart to reveal the very origins of the solar system.

Search for the Cosmic Dawn: The James Webb Space Telescope
The James Webb Space Telescope leads a massive search for an extraordinary chain of events that launched our universe at the brink of the cosmic dawn.

Mars Calling: Manifest Destiny or Grand Illusion
Some believe Mars is the next home for humanity, but the real red planet is a trickster.

Hubble's Enduring Legacy
A look back at the Hubble Space Telescope's major accomplishments since its launch in April 1990.

Exoplanets: Thousands of New Worlds
Scientists, challenging traditional planetary thinking, reveal the existence of exoplanets.