Uploaded March 2023 | Updated September 2026, 3 weeks ago

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Guest Speaker: Evan Lewis, Graduate student at West Virginia University (WVU)
Summary: In this video, you will learn about pulsars, what they are, how they evolve, and how they are studied. Evan describes how the fusion reaction inside of a star “hits a wall” once iron is created in its core. What happens next depends on the mass of the star. If it’s large enough, it can collapse in a supernova explosion into a neutron star. A pulsar is a type of neutron star with a very fast rotation and has a very high magnetic field. Evan explains how radio astronomers use sky surveys to find new pulsars. Pulsars are so precise in their rotations that they rival atomic clocks.
If you are interested in the evolution of stars into neutron stars and pulsars, this video will help you better understand these amazing objects in our universe. We hope you enjoy it!

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Chapters
0:00 Introduction
2:05 How Pulsars are made
8:12 Properties and Population
14:37 Searching for new sources
31:48 Using pulsars as clocks
42:20 What you can do with pulsars timing
45:57 Single Pulsars and RRAT’s
52:17 Millisecond pulsars
52:20 Fun fact about pulsars


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