Segments in this Video

Nebulas: Pillars of Creation (03:04)


In one of the most famous photographs taken by the Hubble telescope, three enormous columns of dust and gas, seven light years long, are part of the Eagle Nebula. Nebulas take on images familiar to humans such as flowers, insects, or people.

Orion Nebula and Astrophotography (08:25)

The Orion Nebula is the most active area of star formation in the galaxy. Photographs of nebulas offer an important niche at the nexus of art and science. Astrophotographers use digital cameras that emulate color vision in the human eye.

Kinds of Nebulas (01:34)

Nebulas are classified into five kinds: H-II, reflection, planetary, supernova remnants, and dark nebulas.

Interstellar Medium (ISM) (02:04)

The stars in the Milky Way are very far apart. The space between the stars contains a very diffuse medium of gas and dust astronomers call the interstellar medium. This medium consists of neutral hydrogen gas, molecular gas, ionized gas, and dust grains.

Star-Forming Nebulas (02:29)

Gravity goes to work on interstellar medium causing it to condense while creating temperatures of a star. The new stars burst into existence in colorful brilliance.

Nebulas: Sizes, Shapes, and Colors (03:39)

As new stars are born within the nebulas, they sometimes shoot out spectacular jets. Nebulas display a wide variety of bubbles, shockwaves, pillars, and mountains. Infrared images show nebulas in extraordinary colors and shapes.

Electromagnetic Spectrum (03:12)

The electromagnetic spectrum visually classifies types of radiation, energy that travels and spreads out as it goes. Included on the spectrum are visible light, radio waves, microwaves, infrared and ultraviolet light, X-rays and gamma-rays.

Nebular Photography (02:23)

Astronomers take Hubble photographs of the Pillars of Creation and then assemble the components into a full color image that reveals more than the sum of its parts. Resultant images are in the visible light spectrum.

Planetary Nebulas (02:38)

The Ring Nebula is considered a prototype for planetary nebulas. Nebula displays of dramatic color and shape are what remains of a dying star.

Helix Nebula (06:48)

There are an estimated 10,000 planetary nebulas in Earth's galaxy. The Helix Nebula, often called the "Eye of God," is only 400 light years from Earth and has been studied intensely. Astronomers are perplexed by the astonishing shapes of planetary nebulas.

Supernova Remnants (03:52)

In 1054, a star exploded and remained visible for 29 days. One thousand years later, we call these supernova remnants the Crab Nebula. At its center is a pulsar.

Life Cycle of the Universe (02:29)

The gas that is expelled into space as supernova remnants and planetary nebulas returns to the interstellar medium where it becomes raw material for future generations of stars. The life cycle of the universe continues.

Credits: Nebulas (00:23)

Credits: Nebulas

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Part of the Series : The Universe
3-Year Streaming Price: $129.95



In this program, astronomers use sophisticated techniques to tease images of nebulas—mysterious clouds of gas considered the crown jewels of the galaxy—from the night sky. Distributed by A&E Television Networks. A part of the series The Universe. (45 minutes)

Length: 45 minutes

Item#: BVL43159

Copyright date: ©2008

Closed Captioned

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