I taught introductory Astronomy at William Paterson University from 2011 to 2020, and at CUNY Hunter from 2016 to 2018. In my years of teaching, I tried to make my class innovative and interesting, featuring unique assignments and activities. I've also created a series of over 100 videos covering most of introductory Astronomy. These videos are rigorous enough to be possibly used as a low-level, self-taught Astrophysics class.

Most of the videos on this channel are geared towards a full intro astronomy course. It contains all the content of a typical undergraduate course, and then some.

If you like what you see, please consider supporting me through Patreon.


Jason Kendall

Just had an interesting interaction with a person who tried to push a geocentric model on me. This is just as bad and annoying as the flatearthers. It just astonishes me that people push this. But. Such people always follow the same life arc: 1) They really wanted to be a Person of Science Doing Important Things. 2) They couldn't cut it. Perhaps the math was too hard or whatever. 3) They left the field, but never lost the desire to contribute. 4) They found something fringe, like flatearth. 5) They found a community of people who also were sidelined because of their fixation on a wrong idea that they couldn't let go of. 6) They met up over social media, created their own echo chamber and went to town. 7) There is no longer a feedback loop that tells them they cannot do this. Meaning it's dirt cheap or free to set up a YT account. 8) They then LASH OUT hard on anyone who promulgates standard science based on well understood, mathematical and experimentally tested theories.

2 weeks ago | [YT] | 25

Jason Kendall

The solution to the solar neutrino problem was....

2 months ago | [YT] | 22

Jason Kendall

Why do stars form in groups?

2 months ago | [YT] | 45

Jason Kendall

How can we tell that there is a binary system of stars even if we cannot resolve both stars in a telescope?

2 months ago | [YT] | 36

Jason Kendall

Hey there! Check out my latest video on Cosmology! I go into PAINFUL detail about what exactly spacetime curvature is.

Spacetime Curvature is a fundamental concept in Cosmology and Relativity. There is no way to describe space and time, and the evolution of the Universe since the Big Bang without it. In this introduction to Curvature, I detail the mathematical framework that underpins a space that is homgeneous and isotropic, with a globally uniform constant curvature. I discuss in detail various metrics, and how we measure lengths and areas in such spaces. I also discuss the real machinery of spacetime: tensorial measures of the space using the Riemann Curvature Tensor and its related components.

Most importantly, I try, hopefully not desperately, to demonstrate that there is no reason or need for spacetime to curve "into" anything. Spacetime curvature is a property of the space itself and doesn't a priori demand or dictate extra physical dimensions to accomodate the curvature.

This is the ninth of the videos in my new series of Cosmology. I'm going through Dr. Barbara Ryden's textbook "Introduction to Cosmology". If you follow along, you'll get a full upper-division undergraduate course in Cosmology. I used this textbook at William Paterson University.

4 months ago | [YT] | 16

Jason Kendall

More fun with fisnal exam multiple guess!

Which region of the Sun is primarily responsible for the Sun's spectrum?

4 months ago | [YT] | 22