Dark Energy - 15b - Intro to Astronomy Sessions

Описание: When astronomers measured how the expansion rate of the Universe has changed over time, against all expectations, it was found to be accelerating. All known types of matter and energy should cause the expansion of the Universe to slow down. There seems to be some other form of "dark energy" driving the acceleration of the Universe. Here we briefly discuss some of its apparent properties and the associated lines of evidence.

Full Series Playlist:    • Intro to Astronomy Sessions  

Please note that this was designed as an introductory survey of astronomy course, mostly for non-science majors, and does simplify many of the topics accordingly. I encourage people who are just getting into astronomy to use this as a jumping off point for more in depth studies. I've tried to edit out specific references to my course (regarding assignments, tests, etc.) but I might have missed some. Finally, scientific fields are constantly advancing, with new data and studies resulting in our ideas being continually improved. This means some of the ideas presented here may soon be out of date, so I again encourage people to continue to investigate whichever topics are of particular interest to you.

Opening Image Credit: https://www.nasa.gov/feature/goddard/...