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The most ancient spiral galaxies seen through nature's largest telescopes (Free Astronomy Public Lectures)

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Manage episode 227132913 series 2483540
Content provided by Swinburne Commons and Swinburne University of Technology. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Swinburne Commons and Swinburne University of Technology or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.
Presented by Dr Tiantian Yuan on Friday 29 September 2017.
One of the most prominent features of galaxies today is the manifestation of elegant spiral arms. We live in a beautiful grand-design spiral galaxy called the Milky Way. Our Solar System, including the Earth and the only life that we know, lies within the Orion spiral arm of our Milky Way galaxy. However, as we look back in time to the very early Universe, the frequency of spiral galaxies decreases dramatically. In fact, most galaxies in the distant past are messy and irregular in shape. Why is it so? When was the first appearance of spiral arms? How were they formed? In this talk, I will take us 11 billion years back in time through the distorted space surrounding nature's most massive structures. We will get a glimpse of earliest onset of spiral arms and directly witness the formation of a spiral galaxy that could later be home to billions of stars and planets like our earth.
  continue reading

90 episodes

Artwork
iconShare
 
Manage episode 227132913 series 2483540
Content provided by Swinburne Commons and Swinburne University of Technology. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Swinburne Commons and Swinburne University of Technology or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.
Presented by Dr Tiantian Yuan on Friday 29 September 2017.
One of the most prominent features of galaxies today is the manifestation of elegant spiral arms. We live in a beautiful grand-design spiral galaxy called the Milky Way. Our Solar System, including the Earth and the only life that we know, lies within the Orion spiral arm of our Milky Way galaxy. However, as we look back in time to the very early Universe, the frequency of spiral galaxies decreases dramatically. In fact, most galaxies in the distant past are messy and irregular in shape. Why is it so? When was the first appearance of spiral arms? How were they formed? In this talk, I will take us 11 billion years back in time through the distorted space surrounding nature's most massive structures. We will get a glimpse of earliest onset of spiral arms and directly witness the formation of a spiral galaxy that could later be home to billions of stars and planets like our earth.
  continue reading

90 episodes

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