Radio Astronomy. Episode 9, Hydrogen and the Structure of Galaxies
(2019, original release: 2017)
Nonfiction
eCourse
Details
PUBLISHED
The Great Courses, 2017
[San Francisco, California, USA] : Kanopy Streaming, 2019
[San Francisco, California, USA] : Kanopy Streaming, 2019
DESCRIPTION
1 online resource (streaming video file) (32 minutes): digital, .flv file, sound
ISBN/ISSN
6726020
LANGUAGE
English
NOTES
Title from title frames
Using the laws of physics and electromagnetic radiation, astronomers can "weigh" a galaxy by studying the distribution of its rotating hydrogen. But when they do this, it soon becomes clear something is very wrong: A huge proportion of the galaxy's mass has simply gone missing. Welcome to the topsy-turvy world of dark matter - which we now believe accounts for 90 percent of our own Milky Way
Film
In Process Record
Felix J. Lockman
Originally produced by The Great Courses in 2017
Mode of access: World Wide Web
In English