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Astronomy Interview

Astronomy Interview

Joffre Swait from Kepler Education interviewed me on various topics of astronomy this afternoon. We talked about the calendar, why Pluto is not a planet, the Astronomy course I'm offering this Fall with Kepler Education, and more.

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Website Updates

Website Updates

After a year-and-a-half hiatus from blogging, I intend to resume semi-regular blog posts, but with significant changes to my website. I'm moving from the somewhat playful josephskywalker.com to the more professional jahearn.com. This is in part due to my...

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Astronomy Q&A Live Stream

Astronomy Q&A Live Stream

On April 9 I hosted my first Astronomy Q&A live stream on Facebook. I responded to questions about the planets and then to questions made to me by viewers of the live stream. It was fun but wore me out. If I do another live stream in the future, I may reduce the...

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Astronomy Q&A Live Stream Announcement

Astronomy Q&A Live Stream Announcement

After getting your feedback, I've scheduled my first Astronomy Q&A live stream for Monday, April 9, at 6:45 pm Pacific Time via Facebook Live. I'll start out by answering questions about the planets that middle- and high-schoolers of Summit Academy in Cottonwood...

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Why Does Spring Start March 20?

Why Does Spring Start March 20?

The first day of spring and the first day of fall happen on equinoxes, when the plane of Earth's equator passes through the Sun's center. Day and night are appoximately (but not exactly) of equal length. Before Julius Caesar introduced his calendar in 45 BC in order...

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Self-Damaging Hostility toward Religion

Self-Damaging Hostility toward Religion

"Maintaining the view that science and religion are in conflict does no one any favors and is hurting science," writes Tom McLeish in his article "Thinking differently about science and religion," published in the latest (February 2018) edition of Physics Today....

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The “We’re Not Special” Ideology

The “We’re Not Special” Ideology

"We're not special" is not a scientific statement. It's an opinion. It's a simple way of expressing what has become known as the Copernican principle. Copernicus himself did not explicitly hold this when he realized Earth was likely not the physical center of the...

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Total Lunar Eclipse on 1/31/2018

Total Lunar Eclipse on 1/31/2018

Interested in seeing the Earth's shadow fall on the Moon on the 31st of this month? Here's a simple and elegant representation by timeanddate.com showing where on Earth it will be visible from. This is a lunar eclipse. It will be total roughly 5-6am Pacific Time....

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The Origin of the Universe

The Origin of the Universe

The origin of the Universe is one of my favorite topics at the interface between science and faith. I've spoken on this several times (which I've kept track of on my Talks and Presentations page). The most recent occasion was the first time it was recorded. You can...

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The Church’s Role in Science

The Church’s Role in Science

Last month I spoke at the Vandal Catholic Encounter on the topic of the Church's role in science. Here is a link to the video recording. I apologize for how much you'll have to strain to listen and see. In the future I hope to write an article to revisit the topic in...

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