DeepSkyVideos

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Documentary

October 31st, 2011

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DeepSkyVideos Season 0 Episodes

Season 0

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The Helium Flash (and Caldwell 3) - Deep Sky Videos

August 25th, 2025

In the vast expanse of the cosmos, NGC 4236 emerges as a breathtaking spiral galaxy, close enough and diffuse enough for the Hubble Telescope to reveal its individual stars in stunning detail. Amid this celestial panorama, astrophysicist Mike Merrifield zeroes in on a captivating phenomenon: a cluster of red giant stars on the brink of a cosmic transformation. These stars are poised for a dramatic event known as the helium flash—a sudden, explosive ignition where helium in their cores reaches a critical temperature and pressure, igniting a chain reaction of fusion into carbon. In a matter of seconds, this stellar outburst will cause a star to blaze with an intensity that outshines its entire galaxy, a fleeting but awe-inspiring spectacle in the universe's grand theater. Through the lens of cutting-edge science and passionate discovery, witness the extraordinary power and beauty of stellar evolution come to life.

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The Story of Galaxy Clusters (and Abell 1)

March 26th, 2025

The Abell catalog is the first catalog of galaxy clusters created by George Abell as his Ph.D. work. Ironically, the first cluster in has catalog, Abell 1, is virtually unknown.

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Dark Matter and Aliens in NGC 2403

March 21st, 2025

Venture into the cosmic mysteries of Spiral Galaxy NGC 2403, where the enigmatic presence of dark matter weaves its invisible threads through the universe. This documentary unveils the critical role this galaxy plays in unlocking the secrets of the cosmos, inviting you to explore the profound connections between the stars and the unseen forces that bind them.

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The Bow-Tie Nebula (Caldwell 2 or NGC 40)

March 5th, 2025

Caldwell 2 is a planetary nebula comprised of the outer layers of its central star that were released into space as the star pulsated due to changes in the nuclear fusion at its core as the star aged.

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A Fascinating Double Star (Albireo)

January 17th, 2025

Albireo is a dramatically bright pair of stars comprised of a yellow and blue star that has intrigued astronomers for centuries. With so may eyes viewing the pair astronomers keep finding new objects in the vicinity leading them to suspect they are seeing the last members of an open star cluster.

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A Lucky Cluster of Middle-Aged Stars - (Caldwell 1 or NGC 188)

October 31st, 2024

Caldwell 1 is a northern, circumpolar, open cluster that is remarkably old. Its unique orbit around the galaxy enabled it to avoid being pulled apart in encounters with other Mily Way objects.

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Asteroid 4179 Toutatis - Deep Sky Videos

September 25th, 2024

Galaxtic astronomer Meghan Gray turns her sights to the peculiar aspects of near Earth asteroid Toutatis which grabbed here attention from some obscure sources.

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Double Quasars - Deep Sky Videos

September 25th, 2023

Meghan explains the challenge of determining if two objects that appear close together in the sky are actually interacting or orbiting each other or are millions of light years apart and just happen to be in the same place in our line of site.

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Crab Nebula in 3D - Deep Sky Videos

May 2nd, 2023

A team headed by Thomas Martin produced a three dimensional map from spectra of the Crab Nebula which Mike couldn't resisted incorporating into one of his famous glass cubes. He shares his cube along with an explanation of the structure of the nebula.

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The First Galaxy - NGC 1 - Deep Sky Videos

November 22nd, 2022

DeepSkyVidoes takes a first look at the New General Catalog beginning with NGC 1 and an explanation of the history of the catalog, how it's organized and why it's needed.

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M108 - The Surfboard Galaxy - Deep Sky Videos

August 31st, 2022

The Surfboard galaxy is somewhat distorted with several x-ray sources. One is of particular interest to Dr. Becky as an intermediate black hole candidate, a size which is not just not understood by unknown.

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M61 - Barred Spiral Galaxy - Deep Sky Videos

February 16th, 2022

Mike Merrifield explains how astronomers recognize star forming regions in galaxies and why it occurs where it does in barred galaxies.

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M47 - Strongly Magnetic White Dwarf - Deep Sky Videos

January 8th, 2022

Messier 47 is an open cluster that contains a rare strongly magnetic white dwarf which provides an opportunity for Dr. Merrifield to share some of the interesting aspect of this star type.

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M55 - Rotating Stars - Deep Sky Videos

October 3rd, 2021

The motion of stars in globular clusters was generally presumed to be random because they are spherical. Or do they just appear to be spherical since we can only see them in two dimensions. It took the Giai Space Observatory to provide accurate enough data to determine if globular clusters rotate.

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M84 - Feedback and Bubbles - Deep Sky Videos

May 25th, 2021

Messier 84 is a large nearby galaxy that has been closely studied in multiple wave lengths helping astronomers understand how a galaxy's central super massive black hole regulates star formation.

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M91 - The Missing Galaxy - Deep Sky Videos

February 16th, 2021

Messier 91 is a low gas galaxy which is unusual to find in a galaxy cluster, in this case the Virgo cluster. But it has a very high metallicity which indicates it once had more gas but burned through it creating stars in an earlier epoch.

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M81 - Bode's Galaxy - Deep Sky Videos

December 28th, 2020

Professor Merrifield explains the theory that the arms of spiral arms are formed by star formation caused by a compression wave in the gas within the galaxy. However, a study of Bodes's galaxy, the featured galaxy in this program, did not find that behavior.

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M94 - Rings and Rotation Curves - Deep Sky Videos

October 5th, 2020

Messier 94 appear to be a double ring galaxy which is extremely rare. Which raises the question; What is it really? And it also has a really weird rotation curve which has equally weird implication for dark matter. This galaxy will take some explaining.

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M14 - Cluster Destruction - Deep Sky Videos

September 2nd, 2020

Galaxies have globular clusters of hundreds of thousands to millions of stars scattered all through them. In these dense balls of stars all manner of things happen to destabilize the star's orbits and cast them away. So astronomers put some effort into determining how long it take the stars of these clusters to be scattered around a galaxy and what processes cause the scattering.

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M59 - Galaxy Detectives - Deep Sky Videos

June 14th, 2020

Messier 59 is an elliptical galaxy with some hidden secrets. Dr. Gray explains how astronomers examine galaxies to see what's going on inside them.

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M63 - Sunflower Galaxy - Deep Sky Videos

April 15th, 2020

Messier 63 is a beautiful flocculant spiral galaxy. Flocculant because it is experiencing a great deal of star formation in it's spiral arms to such an extent that the spiral arm are difficult to discern in the visible spectrum.

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M7 - Pluto and the Wishing Well - Deep Sky Videos

April 6th, 2020

The open cluster Messier 7 was used to test the New Horizons camera on its journey to Pluto for several good reasons.

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M60 - And the 3rd densest galaxy - Deep Sky Videos

March 18th, 2020

Nearby the elliptical galaxy Messier 60 is an extremely bright, extremely compact dwarf galaxy with an inordinately large central black hole for a galaxy it's size. Astronomer are pretty sure some galactic cannibalize is going on there.

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M68 - The Poster Child Cluster - Deep Sky Videos

November 5th, 2019

Messier 68 is the globular cluster chosen by Harlow Shapley to develop his techniques for measuring the distance to globular clusters. From this research he determined the Milky Way is much larger than anyone suspected, that our sun is nowhere near the center and that globular clusters from a spherical halo around the center.

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M106 - Mega Maser Quasar - Deep Sky Videos

October 7th, 2019

The spiral galaxy Messier 106 has an actively accreting black hole at is core putting it in a class known as Seyfert galaxies. This galaxy is also generating a beam of microwaves toward Earth that enables Astonomers to measure the galaxy's distance very accurately.

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M103 - Tracking a Red Giant - Deep Sky Videos

August 19th, 2019

As an open cluster Messier 103 is one of the messier Messier objects, though not as messy as it appears because it lies near the plan of the Milky amongst a multitude of other stars. It contains one red giant star which looks out of place in the cluster. Dr. Merrifield explains how astronomers determined it is a member of the cluster and not a background object.

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M52 - A Cluster of Variable Stars - Deep Sky Videos

July 12th, 2019

Messier 52 is an open cluster full of variable stars. That gives Dr. Gray the opportunity for a history lesson on the era of variable star astronomy.

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M75 - Sausage Globular Clusters - Deep Sky Videos

May 30th, 2019

Dr. Smethurst explains how astronomers use globular clusters to identify galaxies that the Milky Way absorbed in the past.

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M102 - A Tale of Mistakes - Deep Sky Videos

May 3rd, 2019

Charles Messier badly cataloged the galaxy he labeled 102 but more recent sleuth work finds it is probably the dramatic edge on galaxy NGC-5866.

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Supernova in M95 (NEWS) - Deep Sky Videos

March 19th, 2019

Brady calls on his colleagues to explain why astronomers are excited about an apparent supernova in nearby spiral galaxy messier 95.

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