Episode
The Universe: Nebulas
Overview
Nebulae are clouds of gas that aren't classified as stars, planets, moons or asteroids. Astronomers use the most sophisticated techniques to view them since they are practically invisible to the naked eye.
Details
- Series
- The Universe
- Season
- Season 2
- Episode
- Episode 14
- Air date
- 2008-04-01
- Runtime
- 45 min
Episode context
Nebulas is Episode 14 in Season 2 of The Universe. It aired on 2008-04-01. The runtime is 45 min.
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Episode 13: Colonizing Space
Space colonization is no longer the fodder of sci-fi, it's becoming a reality. The efforts are underway to establish a colony on Mars, how they plan to grow food, recycle wastewater & introduce greenhouse gases to revive the Red Planet & make it habitable for us.
Episode 15: Wildest Weather in the Cosmos
Imagine a tornado so powerful, it can form a planet or how about rain made of iron.
More episodes from this season
Episode 12: Cosmic Collisions
Our universe is a cosmic shooting gallery, gravity is moving everything around & things will collide. Astronomers are attempting to understand how collisions occur in space.
Episode 16: Biggest Things in Space
Discover which is the largest planet, star, star cluster, constellation, black hole, volcano, galaxy, explosions, moon, storm, impact crater and void in space.
Episode 11: Unexplained Mysteries
A look at myths and mysteries concerning the universe. Includes a possibility that life can be sustained on Mars, an examination of time travel, and the theory of a Dark Star as a companion of our sun. Also, a closer look at the Big Bang theory.
Episode 17: Gravity
Explore how science and humanity discovered, overcame and utilized gravity.
Episode 10: Constellations
A constellation is a group of stars that are connected together to form a figure or picture. Explore some of the 88 official constellations and learn about some of the highlights of each.
Episode 18: Cosmic Apocalypse
The Universe as we know it is condemned to death. Space, matter and even time will one day cease to exist and there's nothing we can do about it. Harsh realities are revealed about the future of our Universe; it may collapse and burn or it might be gripped by a galactic ice age. Either of these scenarios might be a long way off. However, our Universe could suddenly be destroyed by a "random quantum fluctuation", a bubble of destruction that can obliterate the entire cosmos in the blink of an eye. No matter how it ends, life in our Universe is doomed.
Episode 9: Supernovas
A stellar explosion, the supernova is the sensational death of a star. It can shine as bright as 100 billion suns and radiate as much energy as the Sun would emit over 10 billion years. Jets of high-energy light and matter are propelled into space and can cause massive gamma ray bursts and emit intense X-ray radiation for thousands of years. Astronomers believe that this process creates the very building blocks of planets, people and plants.
Episode 8: Space Travel
When man finally broke free of the Earth's gravitational pull the dream of traveling to other planets became a reality. Today scientists are proposing a bizarre array of technologies in the hope of traveling faster through space, from space craft sporting sails that catch laser beams, to propulsion engines powered by a bizarre entity known as anti-matter.
Episode 7: Astrobiology
Does life exist on other planets? Astrobiology is a visionary new science that searches for life in space by combining the disciplines of astronomy, biology and geology. How did life evolve on Earth? What will life look like on other planets? These and other pertinent questions will be answered by a diverse group of scientists.
Episode 6: Dark Matter
Scientists have no idea what it is, but Dark Matter and Dark Energy make up 96% of the Universe. Dark Matter is everywhere. It passes through everything we know on earth at billions of particles every second, yet no one has ever gotten a direct detection of this mysterious dark substance. An even more bewildering force is Dark Energy, which is rapidly pushing apart our Universe. Discovered only ten years ago, scientists are struggling to comprehend its unusual characteristics and answer the ultimate question; what is the fate of our Universe?