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The 365 Days of Astronomy

365DaysOfAstronomy.org
Astronomy
NASA
Mars
Black Holes
James Webb Space Telescope
Earth
Planetary Science Institute
Asteroids
Hubble Space Telescope
Jupiter
Exoplanets
Saturn
Dark Matter
Spacex
Light Pollution
Orion Nebula
Space Exploration
Moon
Extraterrestrial Life
Astrophysics

The 365 Days of Astronomy podcast launched in 2009 as part of the International Year of Astronomy. This community podcast continues to bring you day after day of content across the years. Everyday, a new voice, helping you see the universe we share in a new way. This show is managed by Avivah Yamani, edited by Richard Drumm. This podcast is funded through Patreon.com/CosmoQuestX and produced out o... more

PublishesDailyEpisodes300Founded18 years ago
Number of ListenersCategories
AstronomyScience

Listen to this Podcast

Artwork for The 365 Days of Astronomy

Latest Episodes

www.youtube.com/watch?v=OEZu3pXAFWY

Hosted by Fraser Cain.

From Jan 31, 2020.

In 2006, astronomers spotted the telltale sign of a supernova detonating in the galaxy NGC 1260, located about 240 million light-years away in the constellati... more

www.youtube.com/watch?v=ZEsLOAJWEo8

Hosted by Tony Darnell.

From May 30, 2025.

Join this channel to get access to special content including livestreams!

The James Webb Space Telescope has unveiled candidates for the very first stars t... more

www.youtube.com/watch?v=5MqoQOXdQis

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

Streamed live May 4, 2026.

Today we continue our mini-series; evaluating the science of various sci-fi franchises. We did Star ... more

Dr. Al Grauer hosts. Dr. Albert D. Grauer ( @Nmcanopus ) is an observational asteroid hunting astronomer. Dr. Grauer retired from the University of Arkansas at Little Rock in 2006. travelersinthenight.org

From December 2025.

Today's 2 topics:

-... more

Key Facts

Accepts Sponsors
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Recent Guests

David Nagler
Astronomer and guest for this episode
Episode: Actual Astronomy - The Observer's Calendar for May 2026
Robert Sproles
CEO of ExoLaunch
ExoLaunch
Episode: EVSN - After Hours: Launching The Small(er) Things With Exolaunch CEO Robert Sproles
Dr. Simon de Wet
Astronomer, PhD graduate in astronomy from UCT, transitioning to postdoc in Copenhagen
University of Cape Town / DTU Copenhagen
Episode: The Cosmic Savannah - Ep. 81: One Last Burst: Gamma Rays & Afterglows
Victor Glover
NASA astronaut, Artemis II crewmate
NASA
Episode: EVSN - To Artemis, With Love
Christina Koch
NASA astronaut, Artemis II crewmate
NASA
Episode: EVSN - To Artemis, With Love
Jeremy Hansen
Canadian Space Agency astronaut, Artemis II crewmate
CSA
Episode: EVSN - To Artemis, With Love
Reed Wiseman
NASA astronaut, Artemis II crewmate
NASA
Episode: EVSN - To Artemis, With Love
Al Grauer
Astronomer/educator referenced as discussing the Three-Eye Atlas and related interstellar objects
Episode: Travelers in the Night Eps. 373 & 374: Tracking 3I/Atlas & Good Night at Bok
Akahiro Nageya
Lead author on the study about Kikai caldera rerecharge, published in Nature Communications Earth and Environment
Nature Communications Earth and Environment (lead researcher)
Episode: EVSN - Supervolcanoes: Erupt, Refill, Repeat

Hosts

Dr. Pamela Gay
Senior Scientist for the Planetary Science Institute and Director of CosmoQuest.
Dr. Jacinta Delhaize
Host of The Cosmic Savannah.

Reviews

4.4 out of 5 stars from 590 ratings
  • I don't care for all the tfake

    giggling and banter

    Podcast Addict
    1
    User1234
    4 months ago
  • Relaxing, Easy on the ears

    I love the story-telling feel to this podcast.

    Apple Podcasts
    5
    coolfactor
    Canada9 months ago
  • Unsubscribing Forever

    Pamela, please leave your political views out of a science podcast. You have lost a +5 year subscriber forever.

    Apple Podcasts
    1
    el_Bofo
    Canada2 years ago
  • over your head

    stick to what you know, go to behind the black website to get the real story

    Apple Podcasts
    1
    hamniko
    United States2 years ago
  • Good

    Good

    Apple Podcasts
    5
    Fine. Ampajwb
    China2 years ago

Listeners Say

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

Some listeners have raised concerns about the political opinions expressed by the hosts, suggesting a desire for the content to remain solely focused on science.
There are frequent comments regarding the intro music, with many suggesting it could be improved to enhance the overall listening experience.
The podcast is generally well-received for its community-driven approach and engaging hosts, with listeners finding joy in the storytelling aspect of the discussions.
Listeners appreciate the informative nature of the content and the variety of topics covered, from theoretical physics to practical astronomy.

Chart Rankings

How this podcast ranks in the Apple Podcasts, Spotify and YouTube charts.

Apple Podcasts
#12
United States/Science/Astronomy
Apple Podcasts
#177
United States/Science
Apple Podcasts
#13
Canada/Science/Astronomy
Apple Podcasts
#20
United Kingdom/Science/Astronomy
Apple Podcasts
#184
Canada/Science
Apple Podcasts
#7
France/Science/Astronomy

Talking Points

Recent interactions between the hosts and their guests.

Cheap Astronomy - Dear CA #134: Testing Asumptions
Q: Just how strange is reality?
Reality is normal by day-to-day standards, but physics shows that at small scales and high speeds, our intuitions fail—yet with careful experimentation we can constrain which explanations hold up, avoiding overblown leaps to exotic conclusions.
Cheap Astronomy - Dear CA # 133: Why It's Always C
Q: Dear Cheap Astronomy, why does a photon move at the speed c?
Photons move at c because they have no rest mass, which means they always travel at the maximum speed allowed by physics in a vacuum. They carry momentum without mass, and thus their behavior is governed by relativistic and quantum principles that set this universal speed limit. In media, interactions slow light down, but in a vacuum they inherently travel at c.
Had Astra Historia - Ep 302 – Take the Gloves Off, Part II
Q: What has been your favorite eclipse tour and what made it special?
The favorite was the 2016 Australia to Indonesia/Malaysia cruise; it wasn't just the eclipse itself but the chance to visit remote Spice Islands, interact with local communities, and experience a remarkable voyage across the Coral Triangle, creating lasting memories beyond the event.
Had Astra Historia - Ep 302 – Take the Gloves Off, Part II
Q: Rick, would you please share a bit of the history of Sky & Telescope Small Group Astronomy Tours and how they started?
Sky & Telescope began offering tours to see eclipses and observe the cosmos with editorial expertise guiding the experience; over time they expanded to land, ship, and airborne tours to total and annual solar eclipses, with a history stretching back to the 1980s and early leadership changes shaping ongoing offerings.
Cheap Astronomy - Dear CA Ep. 132: Mining Again
Q: Dear Cheap Astronomy, How do we get mining products back to Earth? The current narrative on space mining seems to go in two directions.
The host outlines two paths: using in-situ resource utilization to source materials in space and be part of the local space economy, or extracting value by bringing refined materials, like platinum, back to Earth, while acknowledging significant logistical and economic challenges in both approaches.

Audience Metrics

Listeners, social reach, demographics and more for this podcast.

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Frequently Asked Questions About The 365 Days of Astronomy

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

Content focuses on a wide array of astronomical topics, including the age of the universe, pulsars, solar storms, and origins of life, aiming to make complex scientific concepts accessible to a general audience. Episodes often feature discussions with various experts, showcasing their insights on both historical and contemporary developments in astronomy. With a community-driven approach, it emphasizes the joy and wonder of exploring the cosmos while offering practical advice on topics like solar observation and space weather predictions, making it appealing to space enthusiasts and professionals alike.

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Which podcasts are similar to The 365 Days of Astronomy?

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

1. Universe Today Podcast
2. SpaceTime with Stuart Gary
3. Space Nuts: Astronomy Insights & Cosmic Discoveries
4. Ask a Spaceman!
5. Astronomy Cast

How many episodes of The 365 Days of Astronomy are there?

The 365 Days of Astronomy launched 18 years ago and published 300 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

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What guests have appeared on The 365 Days of Astronomy?

Recent guests on The 365 Days of Astronomy include:

1. David Nagler
2. Robert Sproles
3. Dr. Simon de Wet
4. Victor Glover
5. Christina Koch
6. Jeremy Hansen
7. Reed Wiseman
8. Al Grauer

To view more recent guests and their details, simply upgrade your Rephonic account. You'll also get access to a typical guest profile to help you decide if the show is worth pitching.

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