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The 365 Days of Astronomy

365DaysOfAstronomy.org
Mars
NASA
Exoplanets
Moon
James Webb Space Telescope
Milky Way
Planetary Science Institute
Constellations
Jupiter
Black Holes
Dark Matter
Hubble Space Telescope
Meteorites
Artemis Program
Cosmology
Astronomy
Space Debris
Light Pollution
Pulsars
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

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Artwork for The 365 Days of Astronomy

Latest Episodes

From February 15, 2021.

A newly found object nearly four times farther out from the Sun than Pluto now holds the record for the farthest observed in our solar system. Plus, forming Super Earths, finding potentially habitable planets, jellyfish gala... more

www.universetoday.com/articles/7-stage-journey-reveals-how-falling-space-rocks-survive-air

By Laurence Tognetti, MSc - August 31, 2026.

Recorded by our Editor, Richard Drumm.

At least once in our lives, we've all seen a bright streak o... more

www.youtube.com/watch?v=R6lOpIWbly4

From July 23, 2026.

Hosted by Mike Simmons. Episode 19.

astro4equity.org - Visit our website!

Dr. Kelly Blumenthal is an astrophysicist and science communicator who has lived in and worked ... more

Mapping Alien Worlds!

Hosted by Dr. Paul M. Sutter.

Just how hard are exoplanets observations? What kind of telescope will it take to find life? And how much information can we get out of a single pixel of light? I discuss these questions and mor... more

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Recent Guests

Kelly Blumenthal
Director of the IAU Office for Astronomy Outreach
International Astronomical Union (IAU)
Episode: Big Impact Astronomy - Inspiring the World Through Astronomy With Dr. Kelly Blumenthal
Kevin Grazier
NASA scientist; science advisor to Battlestar Galactica and Eureka
NASA/JPL
Episode: Astronomy Cast Ep. 53: Astronomy in Science Fiction
Dr. Vishnu Reddy
Astronomer, lead researcher on HO3 properties
University of Arizona Lunar and Planetary Laboratory
Episode: Travelers in the Night Eps. 373 & 374: Plant Companionship & Earth's Pet Rock
Dr. William K. Hartmann
Planetary scientist, space artist, one of the founders of the Planetary Science Institute
Planetary Science Institute
Episode: EVSN - After Hours #8: Making Moons & Getting Cratered With William K Hartmann
David Kipping
Astronomer, Cool Worlds Lab at Columbia University
Columbia University, Cool Worlds Lab
Episode: Guide To Space - Are Aliens Watching Us & How Could We Hide? With Dr. David Kipping
Danny Jacobs
Arizona State University Professor, radio astronomy expert
Arizona State University
Episode: EVSN - After Hours: Doing Big Science With Light Tools & Guest Dr. Danny Jacobs
Lance Benner
NASA's Jet Propulsion Laboratory scientist who led radar study of Florence
NASA/JPL
Episode: Travelers in the Night Eps. 367 & 368: Moons of Florence & Roving Venus
Dr. Jekan Thanga
University of Arizona professor
University of Arizona, SpaceTREx
Episode: EVSN - After Hours: International Moon Day 2026 With guest Jekan Thanga
Pamela Gay
Professor at Southern Illinois University, Edwardsville
Southern Illinois University Edwardsville
Episode: Astronomy Cast Ep. 160: Eclipses

Hosts

Fraser Cain
Host of the show
Pamela Gay
Co-host providing astronomical explanations
Avivah Yamani
Host/Project management

Reviews

4.4 out of 5 stars from 596 ratings
  • Astronomy

    I thought this was about astronomy? I guess not.

    Apple Podcasts
    1
    horsepower man
    United States3 months ago
  • Gigling

    Stop the gigling!

    Apple Podcasts
    4
    Xanthan Gum
    Germany3 months ago
  • I don't care for all the tfake

    giggling and banter

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

    I love the story-telling feel to this podcast.

    Apple Podcasts
    5
    coolfactor
    Canadaa year 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

Listeners Say

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

Feedback on host delivery varies, with some listeners desiring less political commentary and different vocal styles.
Listeners praise the show's approachable depth and clear explanations of complex topics.
Some listeners criticizing intro music and pacing have been noted in reviews.

Chart Rankings

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

Talking Points

Recent interactions between the hosts and their guests.

EVSN - After Hours: Doing Big Science With Light Tools & Guest Dr. Danny Jacobs
Q: What makes radio astronomy different from optical astronomy?
Radio astronomy uses a much wider range of wavelengths, allowing us to see things invisible to the naked eye and to map phenomena like hydrogen gas and galaxy rotation. Receivers tune to the right wavelength, and even everyday materials can be used to build radio dishes when scaled to the appropriate wavelengths.
Cheap Astronomy - Dear CA Ep. 137: Space Missions
Q: Dear Sheep Astronomy, How much faster is nuclear thermal propulsion?
Nuclear thermal propulsion offers a higher specific impulse than chemical rockets, which means more efficient propulsion and potentially shorter travel times, but it comes with higher power requirements, launcher and reactor challenges, and significant heat management hurdles that must be solved before it can be practical for Earth-to-Mars missions.
NOIRLab - The Start of the LSST
Q: What are the four main science goals of LSST?
The four goals are to map the Milky Way, build an inventory of the solar system including near-Earth objects, observe the transient sky to catch explosive events and evolving objects, and gain a deeper understanding of dark matter and dark energy by analyzing how light from distant galaxies is distorted by foreground matter.
NOIRLab - The Start of the LSST
Q: What is the Legacy Survey of Space and Time (LSST)?
LSST is planned as a ten-year survey that will map the entire southern sky about every three days, creating a large, time-resolved 'cosmic movie' to study changes in the universe and to reach far back into cosmic history.
Ask A Spaceman Ep. 276: What Would Happen if the Sun…Stopped?
Q: What would happen if the Sun stopped fusion right now?
Nothing immediately dramatic; the Sun would continue to shine for a very long time due to stored heat and gravitational contraction, with changes unfolding over tens of thousands to millions of years, and neutrino signals would fade before visible changes become evident.

Audience Metrics

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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?

The show features earnest, accessible discussions of current space science, astronomy instrumentation, and planetary exploration, with a strong emphasis on large-scale surveys, space missions, and observational techniques. Recent episodes highlight sky surveys and open data, lunar and asteroid science, meteorites, eclipses, and the LSST era, often pairing researchers with practical, upside-down-the-pizza ideas for future exploration. A notable strength is blending rigorous science with broad public outreach, citizen science, and practical viewing tips, making it approachable for both enthusiasts and professionals seeking to understand how cutting-edge data and missions shape the field.

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To see how many followers or subscribers The 365 Days of Astronomy has on Spotify and other platforms such as Castbox and Podcast Addict, simply upgrade your account. You'll also find viewership figures for their YouTube channel if they have one.

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. Ask a Spaceman!
3. SpaceTime with Stuart Gary
4. Space Nuts: Astronomy Insights & Cosmic Discoveries
5. The Supermassive Podcast

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. Kelly Blumenthal
2. Kevin Grazier
3. Dr. Vishnu Reddy
4. Dr. William K. Hartmann
5. David Kipping
6. Danny Jacobs
7. Lance Benner
8. Dr. Jekan Thanga

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