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The 365 Days of Astronomy

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The 365 Days of Astronomy
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546 episodes

  • The 365 Days of Astronomy

    ASTROMAN - Light Pollution and the Fight to Bring Back the Stars

    21/03/2026 | 7 mins.
    In this episode of Dark Sky Guardian, we learn how thoughtful lighting can reduce glare, save energy, protect wildlife, and restore our connection to the night sky.
     
    "ASTROMAN: the Dark Sky Guardian" is a podcast channel that aims to explore popular science in multiple disciplines and research on interdisciplinary approaches, such as sustainability, dark-sky protection, astrophotography, space exploration, astronomy innovation, inclusive science communication, and STEAM Education by integrating science and arts.
     
    Exodus CL Sit, also known as the ASTROMAN, is a transmedia astronomy educator, popular science author, STEAM educator, and science communicator in Hong Kong. He is recently the National Astronomy Education Coordinator (Chair of Hong Kong, China) of the International Astronomical Union and President of Starrix. He was also an International Committee Member of the Dark Sky International, regularly organizing public lectures at the Hong Kong Space Museum and the Hong Kong Science Museum. He was also the author of a popular science book "Decoding the Starry Night: A Guide to Stargazing and Astrophotography".
     
    We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 
    Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!
    Share the podcast with your friends and send the Patreon link to them too! 
    Every bit helps! Thank you!
    ------------------------------------
    Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
    http://cosmoquest.org/Donate This show is made possible through your donations. 
    Thank you! (Haven't donated? It's not too late! Just click!)
    ------------------------------------
    The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
    Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
  • The 365 Days of Astronomy

    EVSN - Daily Space Planets, Stars & Death to Dark Energy

    20/03/2026 | 12 mins.
    https://cosmoquest.org/x/dailyspace/2020/01/07/planets-stars-and-death-to-dark-energy/
    From January 7, 2020.
    The Hubble Space Telescope continues to give us amazing views and science, 30 years later. Here are a couple of new stories that help us appreciate this amazing tool of science.
     
    We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 
    Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!
    Share the podcast with your friends and send the Patreon link to them too! 
    Every bit helps! Thank you!
    ------------------------------------
    Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
    http://cosmoquest.org/Donate This show is made possible through your donations. 
    Thank you! (Haven't donated? It's not too late! Just click!)
    ------------------------------------
    The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
    Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
  • The 365 Days of Astronomy

    Actual Astronomy - A Listener's Dream Observatory

    19/03/2026 | 1h 3 mins.
    Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan who enjoy teaching astronomy classes and showing the public views through their telescopes. [email protected]
    A listener builds their dream observatory on Episode 529 of the Actual Astronomy podcast. I'm Chris and joining me is Shane. We are amateur astronomers who love looking up at the night sky and this podcast is for everyone who enjoys going out under the stars.
     
    We have a special guest joining us today, listener Kevin Duchscherer is joining us to share his Observatory Progress.
    - Where are you located Kevin?
    - How long have you been a listener?
    - Tell us about how you became interested in astronomy
    - What sort of astronomy do you enjoy? Visual? astro-Imaging? Both?
    - What equipment have you owned?
    - What equipment is in or will go into the observatory?
    - What was your path to building an observatory
    - Tell us about the design & construction but please start with the footprint size for both the observing area and warm room! Wall & pier height? How did you determine that?
    - How did you isolate piers?
    - I note the warm room is south?
    - What sort of rolling mechanism/rollers?
    - Is the roof powered?
    - I note you insulated? So will you climate control / AC in summer? 
    - Plans for use and; 
    - There was something vaguely familiar, I note some of the features from "A Crayford Type Observatory" https://crayfordmanorastro.com/2019/02/11/a-crayford-type-roll-off-roof-observatory/
    - Next steps
     
    We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 
    Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!
    Share the podcast with your friends and send the Patreon link to them too! 
    Every bit helps! Thank you!
    ------------------------------------
    Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
    http://cosmoquest.org/Donate This show is made possible through your donations. 
    Thank you! (Haven't donated? It's not too late! Just click!)
    ------------------------------------
    The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
    Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
  • The 365 Days of Astronomy

    Cheap Astronomy - Dear CA 131: What's The Point?

    18/03/2026 | 14 mins.
    Hosted by Steve Nerlich.
    Cheap Astronomy asks what's the point and then gets some sunshine.
    Dear Cheap Astronomy – Did the Universe start from a single point?
    This hypothetical concept is commonly stated in pop science blogs and we are guilty of doing the same here at Cheap Astronomy. However, it's not necessarily correct. As with most things relating to the Universe, all we can really talk about is the observable Universe. All evidence available does suggest that it emerged from a point source 13.8 billion years ago, but if the actual Universe is bigger than the observable Universe – and it very likely is – then it's not clear that the whole Universe emerged from that point source.
     
    Dear Cheap Astronomy – Is space-based solar power the solution to all our problems?
    Well, not all our problems and while SBSP is technically feasible, it may not be economically viable. The general idea of SBSP is that you have a solar collecting facility in Earth orbit, which then transmits the energy collected as microwaves down to the Earth's surface. Microwaves are preferred since they pass through the Earth's atmosphere relatively well and should not harm aircraft, ground infrastructure or people if they happen to get in the way. It might seem a bit daft to intercept light that already passes through the Earth's atmosphere, convert it into a lower energy form of light and then pass that through the atmosphere.
     
    We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 
    Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!
    Share the podcast with your friends and send the Patreon link to them too! 
    Every bit helps! Thank you!
    ------------------------------------
    Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
    http://cosmoquest.org/Donate This show is made possible through your donations. 
    Thank you! (Haven't donated? It's not too late! Just click!)
    ------------------------------------
    The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
    Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].
  • The 365 Days of Astronomy

    Ask A Spaceman Ep. 268: What are Little Red Dots?

    17/03/2026 | 34 mins.
    Hosted by Dr. Paul M. Sutter.
    What do we find when we push the James Webb Space Telescope to its limits? Are Little Red Dots newborn galaxies or old black holes? What are they teaching us about the early Universe? I discuss these questions and more in today's Ask a Spaceman!
     
    Support the show: http://www.patreon.com/pmsutter
    All episodes: http://www.AskASpaceman.com
    Watch on YouTube: http://www.youtube.com/PaulMSutter
    Read a book: https://www.pmsutter.com/books
     
    Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE!
     
    Big thanks to my top Patreon supporters this month: Justin G, Chris L, Alberto M, Duncan M, Corey D, Michael P, Naila, Sam R, Joshua, Scott M, Rob H, Scott M, Louis M, John W, Alexis, Gilbert M, Rob W, Jessica M, Jules R, Jim L, David S, Scott R, Heather, Mike S, Pete H, Steve S, Lisa R, Kevin B, Aileen G, Steven W, Deb A, Michael J, Phillip L, Steven B, Mark R, Alan B, Craig B, Richard K, Joe R, David P, Justin, Tracy F, Ella F, Thomas K, James C, Syamkumar M, Homer V, Mark D, Bruce A, Tim Z, Linda C, The Tired Jedi, Bob C, Stephen A, James R, Allen E, Michael S, Reinaldo A, Sheryl, David W, Chris, Michael S, Erlend A, James D, Karl W, Den K, Edward K, Scott K, Vivek D, Jennifer D, Barbara C, Brad, Azra K, Steve R, Koen G, Scott N, and M D Malahy!
     
    We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. 
    Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can!
    Share the podcast with your friends and send the Patreon link to them too! 
    Every bit helps! Thank you!
    ------------------------------------
    Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!
    http://cosmoquest.org/Donate This show is made possible through your donations. 
    Thank you! (Haven't donated? It's not too late! Just click!)
    ------------------------------------
    The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu
    Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

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About The 365 Days of Astronomy

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 of the Planetary Science Institute.
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