How Far Away Is It - 2015 Review - Dark Matter (1080p)
David Butler
@howfarawayisitAbout
This is the "How Far Away Is It" video book channel. It is a video book of Hubble and other Space and ground based Telescope pictures together with an illustrated explanation of how we know how far away these objects are - from your back yard to the most distant galaxies. See how: Triangulation can take us across the globe Parallax can take us across the solar system Standard candles can take us across the Milky Way Red-shift can take us across the universe. The video book contains three chapters: The Solar System; The Milky Way; and Galaxies. A Distance Ladder foundation is built in segments 2 (The Earth) through 6 (Distant Stars). The amazing celestial object photography begins with segment 7 ( Planetary Nebula). Many viewers may want to start there. Students, new to Astronomy, should start from the beginning. There is also a preface and a segment on credits with websites identified that can be used for further research by interested viewers.
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Video Description
Text - http://howfarawayisit.com/documents/ Index - http://howfarawayisit.com/wp-content/uploads/2020/12/How-Far-Index.pdf Welcome to our 2015 update. 2015 marked the Hubble Space Telescope’s 25th anniversary. To celebrate, they published a number of spectacular images. We’ll see: • Caverns carved out of dust by a new star in the Orion Nebula • The Veil Nebula move • Through the Eagle Nebula • A spectacular view of the center of our galaxy • Andromeda galaxy disk details like we’ve never seen them before • A lonely galaxy on the edge of our Local Void • Hanny’s Voorwerp one of the strangest objects ever seen We’ll also update Gaia’s progress, and take a look at Laniakea – a new way to identify superclusters. The LHC at CERN reopened in 2015 after a two year upgrade. Both CERN and Hubble touched on Dark Matter over the past year, so we’ll examine the evidence for Dark Matter (Coma Cluster, Bullet Cluster, Gravitational Lensing, Fritz Zwicky, Vera Rubin, galaxy curves, etc.) and discuss a few of the possibilities for what this mysterious material might be (hydrogen, WIMPS, Neutrino). I trust you’ll find it interesting and informative.
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