Knowing without Seeing - The Science of Black Holes • 2014 • episode "9" Cosmic Front

Category: Astronomy
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Einstein, Oppenheimer, and other physicists and astronomers wrestled with the concept of Black Holes. With relentlessly powerful gravitational pull, black holes suck in anything that comes near them, but do they? As the study of black holes progresses, science finds more mysteries than solutions.

Cosmic Front • 2014 • 18 episodes •

Terraforming Mars

Could human settlements on Mars become reality as early as 100 years from now? Artificial micro organisms created with the latest techniques in synthetic biology could be used to produce resources such as iron, energy, and food directly on the planet itself. What would this new "Earth" look like?

2014 • Astronomy

The Grey Mars

Could Mars have ever harbored life? Thanks to NASA's latest Mars rover Curiosity, scientists are finding clues to this profound question. This program tracks the first year of Curiosity's adventure, and confirms that an ancient environment could have supported life on Mars.

2014 • Astronomy

Betelgeuse - Death of a Super Star

In the Orion constellation, Betelgeuse, a red star 1,000 times the size of the Sun, is an old star that scientists predict will soon come to a violent end. Will we see a supernova explosion 100 times brighter than a full moon in our lifetimes? Will the explosion release rays harming life on Earth?

2014 • Astronomy

Dark Matter

The story of how we discovered Dark Matter and what we do and don't know about this mysterious substance. Did Vera Rubin discover the glue holding galaxies together? What composes dark matter? What are Dark Stars and what is super symmetry, the potential answer to the questions around Dark Matter?

2014 • Astronomy

Extraterrestrial Life

Extraterrestrial life = Science Fiction. Not so fast! -- the Cassini probe has provided photos of Enceladus, where scientists have found geysers of water vapor. And then there is Gliese 581g, a planet with Earth-like conditions....what would life forms look like in these watery environments?

2014 • Astronomy

First Stars

Look up at the night sky, and you see countless shining stars. Our galaxy has 100 billion of them. Astronomers are now hunting for clues that will reveal "the first star" that transformed the ancient universe and led to the creation of everything that followed: galaxies, planets and life itself.

2014 • Astronomy

Illuminating the Magellanic Clouds

The Large and Small Magellanic Clouds, luminous in the night sky of the Southern Hemisphere, are celestial bodies shrouded in mystery, but recent observations have revealed some startling facts about them. They are survivors of galaxies formed in the early stages of the Universe.

2014 • Astronomy

Impact - Looking Out for Asteroids

An asteroid colliding with the Earth is not a just Hollywood fantasy. NASA and the Space Guard Foundation develop deflection plans to save the Earth from a comet, meteor or asteroid with Earth in its trajectory. Take a look at how the world is working together to keep our skies safe.

2014 • Astronomy

Knowing without Seeing - The Science of Black Holes

Einstein, Oppenheimer, and other physicists and astronomers wrestled with the concept of Black Holes. With relentlessly powerful gravitational pull, black holes suck in anything that comes near them, but do they? As the study of black holes progresses, science finds more mysteries than solutions.

2014 • Astronomy

Monster Black Holes

There are Black Holes, and then there are Monster Black Holes -- containing several million to ten billion times the mass of our Sun! They've been discovered in the center of many galaxies. But they don't just absorb everything around them...in fact, they may be key to forming new galaxies.

2014 • Astronomy

Our Extraordinary Sun

Telescopes on six solar observation satellites are currently monitoring the sun. The satellites include Japan's Hinode and the SDO developed by the United States. Solar activity (flares, sunspots) is at its lowest since modern observation began - what implications does this have for our Earth?

2014 • Astronomy

Saturn's Moon Titan - Another Earth?

Even with a surface temperature of -180C, Saturn's moon, Titan, could be another Earth. There's evidence of dunes made of quantities of organic material that could contain the building blocks for DNA. Astrobiologists are conducting studies on the possibility that life could be present on Titan.

2014 • Astronomy

Signals from Outer Space?

Were "little green men" trying to contact us? Over 40 years ago, extremely constant pulses were detected reaching the Earth from outer space. It caused a great sensation. Using a radio telescope larger than a baseball field, scientists looked for the source of these signals and found - pulsars.

2014 • Astronomy

Space Shuttle

The Space Shuttle fleet was retired in 2011 after leading international missions for three decades. This is the dramatic story of the tragedies and triumphs of the Space Shuttle fleet, and how it broadened humankind's exploration of space.

2014 • Astronomy

The Lunar Rover

In summer 1969, Apollo 11 succeeded as the first manned mission to land on the moon. The next challenge was to design and build the first exploration vehicle. It had to allow astronauts to explore the moon's surface, but it had to fit in just a meter square space!

2014 • Astronomy

The Mystery of the Universe's Bubbles

Scientists using the Hubble Telescope study vivid images from 12 billion and more light years away and observe that many galaxies cluster together like -- soap bubbles! Analyzing factors like dark matter and gravitational lensing, how can astronomers confirm this amazing bubble structure?

2014 • Astronomy

The Nebra Sky Disc

3,000- years-old, the Nebra Sky Disk is the oldest sky map in the world, predating Babylonian and Egyptian sky maps. Found in Germany, the Nebra Sky Disk is an archaeological mystery. Who were the people who designed this beautiful and functional ancient artifact with exact proportions?

2014 • Astronomy

The Orion Nebula

The Orion Nebula is a interstellar cloud situated in the Milky Way, south of Orion's Belt. In a 2-year effort, scientists create a mosaic of over 100 images at the tip of Orion's sword to discover four massive young stars. What do they tell us about how planetary systems are formed?

2014 • Astronomy

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Star Clusters

Last week we covered multiple star systems, but what if we added thousands or even millions of stars to the mix? A star cluster. There are different kinds of clusters, though. Open clusters contain hundreds or thousands of stars held together by gravity. They’re young, and evaporate over time, their stars let loose to roam space freely. Globular clusters, on the other hand, are larger, have hundreds of thousands of stars, and are more spherical. They’re very old, a significant fraction of the age of the Universe itself, and that means their stars have less heavy elements in them, are redder, and probably don’t have planets (though we’re not really sure).

35Crash Course Astronomy • 2015 • Astronomy

Journey Through Space

Brilliantly narrated by film and television legend Sir Patrick Stewart, Journey To Space gives a sweeping overview of humanity’s accomplishments in space, as well as our ongoing activities and future plans. Journey To Space puts into historical context the magnificent contributions made by the Space Shuttle program and its intrepid space pioneers. It uses the most spectacular space footage – including unique views of Earth and operations in space – such as deploying and repairing the Hubble Space Telescope. It then goes on to show how the shuttle launched and assembled the International Space Station (ISS). Together, these programs have taught us how to live, build and conduct scientific experiments in space. The ISS will continue operating in space until 2024, and the film shows how it is building a foundation for the next giant leaps into space, concluding with a fascinating, realistic scenario of how astronauts will actually get to Mars, live there for long durations, and then return home after a two-and-a-half-year mission.

2015 • Astronomy

Dark Matter

The story of how we discovered Dark Matter and what we do and don't know about this mysterious substance. Did Vera Rubin discover the glue holding galaxies together? What composes dark matter? What are Dark Stars and what is super symmetry, the potential answer to the questions around Dark Matter?

4Cosmic Front • 2014 • Astronomy

Edge of the Universe

We don't yet know where the edge of the universe is or what happens there; but thanks to cutting-edge technology and new discoveries, experts might finally reveal the secrets of the phenomena that can be found in deepest reaches of the cosmos.

S8E7How the Universe Works • 2020 • Astronomy

Man Made Planet: Earth from Space

In 1972, the crew of Apollo 17 captured the iconic 'Blue Marble': the first photograph ever taken by an astronaut of the entire Earth. This photo had a profound effect on our perception of ourselves. Since then, Nasa has taken millions more. In this epic, powerful and revelatory documentary, a new generation of astronauts, including Tim Peake, use those images of the Earth from space to reveal the astonishing transformation humanity has wrought in the 45 years since 'Blue Marble'. Together, the astronauts provide an armchair tour of the change they've witnessed from orbit, as humankind etches our presence on the planet. Using stunning time-lapse sequences, the programme reveals how we are reshaping our world, for better and for worse: from the sprawling megacities of China to vast desert farms in the Middle East and from the melting snowcap of Kilimanjaro to giant solar arrays in Nevada.

2017 • Astronomy

Could Solar Storms Destroy Civilization? Solar Flares & Coronal Mass Ejections

The sun. Smooth and round and peaceful. Except when it suddenly vomits radiation and plasma in random directions. These solar flares and coronal mass ejections, or CMEs can hit earth and have serious consequences for humanity.

In a Nutshell • 2020 • Astronomy