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Artwork for 365 Days of Astronomy

365 Days of Astronomy - Weekly Edition

Fraser Cain & Dr. Pamela L. Gay
NASA
Parker Solar Probe
Nuclear Weapons
Neil Gehrels
Astrophysics
Swift Telescope
Eugene Parker
James Webb Space Telescope
Voyager
Albert Einstein
Kessler Syndrome
Space Weapons
Electromagnetic Pulses
Russia
Outer Space Treaty
Operation Fishbowl
Exoplanets
Fermi
Dark Energy
Quantum Mechanics

The weekly podcast from the International Year of Astronomy 2009. This podcast comes out weekly and includes each daily episode of the 365 Days of Astronomy Podcast.

PublishesWeeklyEpisodes504Founded17 years ago
Number of ListenersCategories
ScienceNatural Sciences

Listen to this Podcast

Artwork for 365 Days of Astronomy

Latest Episodes

Streamed live on Jan 12, 2026.

Hosted by: Fraser Cain (@frasercain ) and Dr. Pamela L. Gay (@CosmoQuest )

Humans live short lives, and from our perspective the seasons are something that come and go with perfect regularity. But astronomers know t... more

Streamed live on Jan 5, 2026.

Freeman Dyson asked a fascinating question. What would it look like if a civilization was using all the energy coming from their star? And what form would this take? This introduced the concept of a Dyson Sphere, or mo... more

Streamed live on Dec 29, 2025.

How big can a star get? This is a calculation made by one of the original pioneers of modern astronomy, Sir Arthur Eddington. And it’s named after him, the Eddington Limit. Now, astronomers are finding examples of gia... more

Streamed live on Dec 22, 2025.

Shortly after the big bang there were almost exactly the same amounts of matter and antimatter in the Universe, but there was just enough of a difference that we live in a matter-dominated Universe. But it didn’t have... more

Key Facts

Contact Information
Podcast Host
Number of Listeners
Find out how many people listen to this podcast per episode and each month.

Similar Podcasts

People also subscribe to these shows.

Space Nuts: Astronomy Insights & Cosmic Discoveries
Space Nuts: Astronomy Insights & Cosmic DiscoveriesProfessor Fred Watson and Andrew Dunkley
Astronomy Cast
Astronomy CastFraser Cain and Dr. Pamela Gay
The 365 Days of Astronomy
The 365 Days of Astronomy365DaysOfAstronomy.org

Hosts

Fraser Cain
Publisher of Universe Today, a well-known figure in the astronomy community who provides insights and discussions on various astronomical topics.
Dr. Pamela Gay
Senior Scientist for the Planetary Science Institute and Director of CosmoQuest, an advocate for astronomy education and outreach in the scientific community.

Reviews

4.9 out of 5 stars from 741 ratings
  • Too little

    Too many empty pauses. Too much uninteresting small talk. Too little good solid astronomy talk. Please unsubscribe me. Thank you. Also, one needs to send a “nickname” with the comment. I tried 3 and all were “taken.”

    Apple Podcasts
    1
    xzlqks
    United States6 years ago
  • Excellent

    Great listening for the astronomy fan but please change that awful intro music.

    Apple Podcasts
    4
    lakeswalker
    United Kingdom6 years ago
  • Excellent podcast

    I listen to a few astronomy podcasts, this is one of my favourites.

    Apple Podcasts
    5
    Floorwalker124
    Australia14 years ago
  • Mostly Gems

    Mostly Gems, some duds, but if you like, love, or live astronomy there's something in it for you. And it's daily(compiled here weekly)! Open up your mind, truth is stranger (and way more fun) than fiction.

    Apple Podcasts
    5
    GTNAKD
    United States16 years ago
  • DanniStories Thumbs Up

    Entertaining and informative, they are short enough to squeeze in between other things. Each is different, and there are guest podcasters.

    Apple Podcasts
    5
    Dannis Cole
    United States16 years ago

Listeners Say

Key themes from listener reviews, highlighting what works and what could be improved about the show.

Feedback includes appreciation for the hosts' chemistry and depth of knowledge, enhancing the overall experience of listeners.
Some reviews mention the diverse range of topics covered, indicating that both novices and experts can find material of interest.
Listeners praise the podcast for its informative and engaging content, often noting its ability to make complex astronomical concepts accessible and enjoyable.

Chart Rankings

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Talking Points

Recent interactions between the hosts and their guests.

Ep. 756: SphereX
Q: Is there a highest possible frequency of light?
There is no limit to the wavelength of light, just limitations in what our equipment can detect.
Ep. 756: SphereX
Q: How can an armchair astronomer consume detailed data from the SphereX mission?
It'll all be landing in a NASA repository, probably in a large data release similar to the way they do with Gaia.
Ep. 753: Why is the Moon's South Pole So Interesting?
Q: Are there any plans for a telescope to be placed at the South Pole?
Current discussions involve putting telescopes both at the South Pole and on the far side, with the possibility of utilizing lunar regolith for construction.
Ep. 753: Why is the Moon's South Pole So Interesting?
Q: Is landing at the South Pole of the moon more difficult than landing elsewhere on the moon?
Yes, landing at the South Pole is significantly more difficult due to complex geology and the need for more propulsion to change orbits.
Ep. 753: Why is the Moon's South Pole So Interesting?
Q: Will it be safer to mine the asteroid belt in other locations than the moon, considering how important the moon is to the Earth?
No, mining on the Moon is safer because it has enough gravity, offering secure orbits and reduced risks compared to the fragile and poorly understood asteroid belt.

Audience Metrics

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Frequently Asked Questions About 365 Days of Astronomy

What is 365 Days of Astronomy about and what kind of topics does it cover?

The focus of the content revolves around enlightening listeners on various astronomical topics, featuring discussions on current events in the field of astronomy, historical perspectives, and significant scientific discoveries. The format is characterized by weekly episodes that cater to both astronomy enthusiasts and casual listeners interested in expanding their knowledge of the cosmos. Unique aspects include a diverse range of topics which not only cover traditional astronomical phenomena but also engage with contemporary issues and educational resources in the field, making it particularly beneficial for listeners looking to enhance their understanding of astronomy.

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Which podcasts are similar to 365 Days of Astronomy?

These podcasts share a similar audience with 365 Days of Astronomy:

1. Universe Today Podcast
2. Space Nuts: Astronomy Insights & Cosmic Discoveries
3. Astronomy Cast
4. The 365 Days of Astronomy
5. Planetary Radio: Space Exploration, Astronomy and Science

How many episodes of 365 Days of Astronomy are there?

365 Days of Astronomy launched 17 years ago and published 504 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

How do I contact 365 Days of Astronomy?

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