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Ask a Spaceman!

Paul M. Sutter
Quantum Mechanics
Dark Matter
Dark Energy
Nuclear Fusion
Cosmic Microwave Background
Astronomy
Science
Black Holes
Big Bang
Cosmology
Electromagnetism
Neutron Stars
Milky Way
ITER
National Ignition Facility
Trust In Science
Astrophysics
Mathematical Universe Hypothesis
Physics
Gravity

You've got questions and astrophysicist Paul M. Sutter has answers - every episode you will come closer to complete knowledge of time and space!

PublishesTwice monthlyEpisodes279Founded11 years ago
Number of ListenersCategories
AstronomyScienceNatural Sciences

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Artwork for Ask a Spaceman!

Latest Episodes

What does is mean for the universe to have a wave function? How does Hawking's "no boundary" proposal mean that the universe comes from itself? And is it really the final answer? I discuss these questions and more in today's Ask a Spaceman!

Support... more

What does "antimatter" actually mean? Can a particle be its own opposite? What would happen to it, and what does this have to do with a missing scientist? I discuss these questions and more in today's Ask a Spaceman!

Support the show: www.pa... more

How can matter ever go faster than light? What happens when it does? Who discovered this, and what is it good for? I discuss these questions and more in today's Ask a Spaceman!

Support the show: www.patreon.com/pmsutter

All episodes: http:... more

What did the universe do to make so many defects? What happens when they get trapped? And could they be hiding right in front of our noses? I discuss these questions and more in today's Ask a Spaceman!

Support the show: www.patreon.com/pmsut... more

Key Facts

Accepts Sponsors
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Podcast Host
Number of Listeners
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Recent Guests

Kyle S
Question asker that led to the episode
Episode: AaS! 268: What are Little Red Dots?

Host

Paul M. Sutter
Host of Ask a Spaceman; astrophysicist with a focus on making physics accessible to the public.

Reviews

4.8 out of 5 stars from 1.8k ratings
  • Used to be good

    This used to be a good podcast. Now they are short and have lots of commercials. He still manages to ask for Patreon contributions though

    Apple Podcasts
    3
    Utmost Tartan
    United States3 months ago
  • One of the best

    What can I say that has not been said before this podcast is amazing the host is very entertaining and knowledgeable and the topics are very interesting the best podcast ever

    Apple Podcasts
    5
    @the animator
    United States3 months ago
  • An all time favorite series

    Making physics fun a relatable for the curious non-physicist

    Apple Podcasts
    5
    743Rob
    United States7 months ago
  • Great Podcast!

    I look forward to every new episode.

    Apple Podcasts
    5
    Casti 7
    United States7 months ago
  • Just the best podcast, shame it doesn’t come out more often!

    Fantastic high quality podcast covering all things space and physics. Love how some elements are in depth and go deeper into a subject. Just wish there would be more episodes! Thank you for your constant work on this.

    Apple Podcasts
    5
    Ogbuyana
    United Kingdom8 months ago

Listeners Say

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

High information density yet approachable for newcomers
Consistently entertaining with strong host delivery and depth
Clear and engaging science communication that's accessible to non-experts

Chart Rankings

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

Talking Points

Recent interactions between the hosts and their guests.

AaS! 261: What are Black Dwarfs?
Q: How long does it take for a white dwarf to cool into a black dwarf?
It takes approximately 10 trillion years for a white dwarf to cool sufficiently to become a black dwarf.
AaS! 261: What are Black Dwarfs?
Q: What happens to a white dwarf over time?
A white dwarf cools down over trillions of years and transforms into a black dwarf, eventually becoming nearly invisible and ceasing to emit visible light.
AaS! 214: Is Empty Space Really...Empty?
Q: Is space really empty?
To determine if space is empty, we need to define what we mean by 'space' and consider that even in the deeper voids of the universe, there's still energy and other entities present.

Audience Metrics

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Listeners per Episode
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Frequently Asked Questions About Ask a Spaceman!

What is Ask a Spaceman! about and what kind of topics does it cover?

This show delivers accessible, deep dives into physics, cosmology, and space exploration, led by a physicist who explains complex ideas with clarity, humor, and memorable analogies. Episodes span neutrinos, dark matter, cosmic inflation, interstellar objects, and quantum phenomena, often tying theory to observations and real-world implications. Sponsorships and listener questions are acknowledged, but the core remains thoughtful science communication that appeals to curious, educated listeners who enjoy exploring time, space, and the laws that govern them. A standout trait is the host's ability to simplify intricate concepts without talking down, making advanced topics approachable for enthusiastic non-experts while still rewarding knowledg... more

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Which podcasts are similar to Ask a Spaceman!?

These podcasts share a similar audience with Ask a Spaceman!:

1. Universe Today Podcast
2. The Supermassive Podcast
3. SpaceTime with Stuart Gary
4. Space Nuts: Astronomy Insights & Cosmic Discoveries
5. Daniel and Kelly’s Extraordinary Universe

How many episodes of Ask a Spaceman! are there?

Ask a Spaceman! launched 11 years ago and published 279 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 Ask a Spaceman!?

Recent guests on Ask a Spaceman! include:

1. Kyle S

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