Ask a Spaceman!

What would happen if you fell into a black hole? How big is the universe? Just what the heck is a quasar, anyway? You've got questions, and astrophysicist Paul Sutter has the answers! Submit questions via Twitter using #AskASpaceman or post to facebook.com/PaulMattSutter. Every episode you will come closer to COMPLETE KNOWLEDGE OF TIME AND SPACE!

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Website
http://www.askaspaceman.com
Description
What would happen if you fell into a black hole? How big is the universe? Just what the heck is a quasar, anyway? You've got questions, and astrophysicist Paul Sutter has the answers! Submit questions via Twitter using #AskASpaceman or post to facebook.com/PaulMattSutter. Every week you will come closer to COMPLETE KNOWLEDGE OF TIME AND SPACE!
Language
🇬🇧 English
last modified
2019-06-18 12:45
last episode published
2019-06-18 11:00
publication frequency
13.5 days
Contributors
Paul M. Sutter author   owner  
Explicit
false
Number of Episodes
119
Rss-Feeds
Detail page
Categories
Education Science & Medicine Natural Sciences

Recommendations


Episodes

Date Thumb Title & Description Contributors
18.06.2019

How do we measure the expansion of the universe?

What’s the deal with redshift? How can we actually interpret velocities when it comes to cosmic expansion? And what’s with the recent tension over measuring the expansion rate? I discuss these questions and more in today’s Ask a Spaceman! Support the s...
Paul M. Sutter author
4.06.2019

Is everything a wave or a particle, and why does my head hurt?

Is light made of waves or particles? Is matter made of waves or particles? What does it mean for matter to “wave”, anyway? Why is this so hard to understand? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.pat...
Paul M. Sutter author
21.05.2019

What turned Venus into hell?

What’s so bad about Venus, besides everything? How did it get so bad? And are we next? 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 Follow on T...
Paul M. Sutter author
7.05.2019

What's wrong with the cosmic calendar?

What is the “cosmic calendar”? What are some important scales in the universe? Why is it so hard to judge “importance” of events? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episod...
Paul M. Sutter author
16.04.2019

What are the mighty clusters of galaxies?

What are galaxy clusters made of, besides galaxies? How can we use them to understand dark matter? And how can we make pretend ones on a computer? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pm...
Paul M. Sutter author
2.04.2019

What is the black hole information paradox?

What is “information” in physics? Why do we think it’s preserved, and what happens to information when it falls into a black hole? Why is this a problem? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon...
Paul M. Sutter author
19.03.2019

Why avoid the cosmic voids?

How do cosmic voids form? What do they teach us about dark energy? What did the early universe look like? What does all this have to do with cupcakes? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.co...
Paul M. Sutter author
5.03.2019

Do we live in the multiverse?

What’s the difference between the universe and the multiverse? How can cosmic inflation make bubble universes? Do those universes get different physics? If I travel far enough away, will I meet…myself? I discuss these questions and more in today’s Ask ...
Paul M. Sutter author
19.02.2019

Who's in charge of the quantum world?

How did Max Planck accidentally discover quantum mechanics? Why is his constant so special? What happens at the quantum level? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes:...
Paul M. Sutter author
5.02.2019

What makes the strong force so strong?

Why is the strong force better known as the “color force”? What’s the best way to think about protons and quarks? What do the Three Musketeers have to do with anything? I discuss these questions and more in today’s Ask a Spaceman! Support the show: htt...
Paul M. Sutter author
15.01.2019

Hey, who took all the antimatter?

Why are matter and antimatter symmetric? What happened in the early universe to make matter win? Do we have any clue as to why? What do puppies have to do with it? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://w...
Paul M. Sutter author
1.01.2019

Does light experience time? (and other mysteries)

What does ‘time’ mean for light? What is the real lesson of the twin paradox? How can we all agree on the true age of the universe? Why is it all so technical? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.p...
Paul M. Sutter author
18.12.2018

How did we figure out that stuff is made of atoms?

How and when did we realize that atoms exist? How did we learn to understand their properties? How was Ernest Rutherford hogging all the science for himself? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.pat...
Paul M. Sutter author
4.12.2018

Does the Oort Cloud Exist?

Where is the Oort Cloud and what is it made of? Why do we think some comets come from there? If the Oort Cloud exists, how did it form? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All ...
Paul M. Sutter author
20.11.2018

I give up, what is time?

What makes time so hard to understand? Why is it so different from the spatial dimensions? Is time in any way connected to that most difficult of concepts, entropy? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://...
Paul M. Sutter author
6.11.2018

Could we blow up a star?

How much energy is needed to blow up the sun? How is this connected to the idea of binding energy? Where is all the energy in the universe? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter ...
Paul M. Sutter author
16.10.2018

Why are brown dwarf stars so weird?

What do brown dwarfs teach us about stars? What do they teach us about planets? What keeps them warm, and how long do they live? And are they really brown? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patre...
Paul M. Sutter author
2.10.2018

Why are brown dwarf stars so weird?

What do brown dwarfs teach us about stars? What do they teach us about planets? What keeps them warm, and how long do they live? And are they really brown? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patre...
Paul M. Sutter author
25.09.2018

A Reading from the Book of Paul

Today I'm reading a sample from my new book, Your Place in the Universe! I'm also sharing details about how you can a) buy the book, b) contribute to my Patreon to get an autographed copy, c) get my book tour to swing by your neighborhood, and d) buy t...
Paul M. Sutter author
18.09.2018

Is the Drake Equation useful?

What does the Drake Equation teach us about extraterrestrial civilizations? What does it NOT teach us? What complexities does it hide? Is it even science? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreo...
Paul M. Sutter author
4.09.2018

How do magnets work?

What’s the connection between motion and magnetism? How can something like a black hole have a magnetic field? What’s the connection to quantum mechanics? How did Einstein use magnetism to develop special relativity? I discuss these questions and more ...
Paul M. Sutter author
21.08.2018

Why do we need cosmic inflation? (Part 2)

Part 2! What was going in the very early universe? How does inflation provide the seeds of larger structures? How can we possibly test this? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter...
Paul M. Sutter author
7.08.2018

Why do we need cosmic inflation? (Part 1)

Part 1! What are some weaknesses with the standard Big Bang model? What are the horizon and flatness problems? How does accelerated expansion solve these? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreo...
Paul M. Sutter author
17.07.2018

How does dark energy accelerate the universe?

What is the cosmological constant? How is the expansion of the universe related to quantum fields? How does a vacuum energy produce accelerated expansion? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreo...
Paul M. Sutter author
3.07.2018

Can entangled particles communicate faster than light?

What is a quantum state? How can two particles share the same state? What is entanglement, and does it really allow for faster-than-light communication? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon....
Paul M. Sutter author
19.06.2018

What awoke the cosmic dawn?

Were the dark ages really dark? What is a perturbation, and how did they grow in the early universe? When the first stars awoke, what happened? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsut...
Paul M. Sutter author
5.06.2018

How do you build a rocket-ship?

What does momentum have to do with rockets? Why are nozzles so dang important? What is a “potent mixture”, anyway? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http://www....
Paul M. Sutter author
15.05.2018

What made the "OMG Particle" so special?

What is the so-called “OMG Particle”? Where could it possibly come from, and how are magnetic fields involved? How can we detect these cosmic rays? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/p...
Paul M. Sutter author
1.05.2018

Seriously, what is gravity? (Part 3)

Part 3! How did Einstein develop General Relativity? What does it mean for different kinds of masses to be equivalent? How does gravity do what it does? Why is curvature so important in understanding gravity? I discuss these questions and more in today...
Paul M. Sutter author
24.04.2018

New AstroTour: Costa Rica

All about the new AstroTour to Costa Rica in March 2019 with Fraser Cain. The trip features San Jose, Guanacaste Beach, the Arenal Volcano, Monteverde, and more! Plus amazing stargazing opportunities throughout the trip, special shows and talks by myse...
Paul M. Sutter author
17.04.2018

Seriously, what is gravity? (Part 2)

Part 2! How did Einstein develop General Relativity? What does it mean for different kinds of masses to be equivalent? How does gravity do what it does? Why is curvature so important in understanding gravity? I discuss these questions and more in today...
Paul M. Sutter author
3.04.2018

Seriously, what is gravity? (Part 1)

Part 1! How did Einstein develop General Relativity? What does it mean for different kinds of masses to be equivalent? How does gravity do what it does? Why is curvature so important in understanding gravity? I discuss these questions and more in today...
Paul M. Sutter author
20.03.2018

Iceland Question Bonanza!

Where did all the monopoles go? Do other planets have auroras? Can binary stars host planets? I discuss these questions and more in today’s Ask a Spaceman! A very special edition recorded in Vik, Iceland, where I answered questions from the AstroTouris...
Paul M. Sutter author
6.03.2018

Why is Iceland so warm?

What makes Iceland so warm despite its high latitude? What powers everything from glaciers to geysers? How are the aurora connected to volcanoes? I discuss these questions and more in today’s Ask a Spaceman! A very special edition recorded in Vik, Icel...
Paul M. Sutter author
20.02.2018

Why are small stars such a big deal?

Why are small stars red? Why are small stars so common? Why are small stars so interesting for the hunt for life? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http://www....
Paul M. Sutter author
6.02.2018

Why should we believe the big bang?

What did Hubble really discover? Why does redshift imply an expanding universe? Why is the night sky dark? Why is there so much hydrogen, and how is that connected to the Big Bang? I discuss these questions and more in today’s Ask a Spaceman! Support t...
Paul M. Sutter author
16.01.2018

How does gravity make a lens?

How does gravity bend the path of light? Does it seriously act like a lens or is that just a metaphor? What does it take, and how do we know? What can we learn from this strange physics? I discuss these questions and more in today’s Ask a Spaceman! Sup...
Paul M. Sutter author
2.01.2018

Who lives in the particle zoo?

What strange creatures inhabit the so-called “particle zoo”?  Why is it a zoo instead of something simpler? Is there anything that connects the forces and particles of our universe? I discuss these questions and more in today’s Ask a Spaceman! Support ...
Paul M. Sutter author
19.12.2017

Can we have some quark stars, please?

How does degeneracy pressure work? What kinds of particles exist below the level of neutrons? Can they hold up a star against gravity?  I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All ...
Paul M. Sutter author
8.12.2017

AstroTour: Atacama Dark Sky Retreat

Join me for an all new AstroTour adventure, one that I'm personally very excited about: a trip to the Atacama Desert of Chile to spend a week at an all-inclusive stargazing resort! The trip is perfectly timed to hit the Geminid meteor shower, explore t...
Paul M. Sutter author
5.12.2017

What makes a blazar blaze so brightly?

What powers a quasar? Just how strong is a blazar? What’s the connection to giant black holes?  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 Fo...
Paul M. Sutter author
21.11.2017

Do we live in a hologram?

What’s the idea behind the holographic principle? What does it have to do with black holes and the early universe? Does this…mean something?  I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutte...
Paul M. Sutter author
7.11.2017

Why can't I be an astrophysicist?

Why is it tough to become a scientific researcher? What are some of the barriers in the field? Are there any other options? I have a PhD - now what? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/...
Paul M. Sutter author
17.10.2017

What in the world in metallic hydrogen?

What in the world is metallic hydrogen? What does it even mean? Where does it exist in nature, and can we make it in the lab? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: ...
3.10.2017

How does one become an astrophysicist?

How does one become an astrophysicist? What are the challenges and rewards of that kind of career? Are there even any jobs? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: ht...
Paul M. Sutter author
26.09.2017

All about the "Sea and the Stars" AstroTour

Fraser Cain and I are leading another starry-eyed adventure, this time to the beautiful caribbean on a 7-day cruise, featuring tours of the Kennedy Space Center, star viewing every night, at-sea talks and show recordings, and explorations of Mayan ruin...
Paul M. Sutter author
19.09.2017

What fate awaits the Voyagers?

Why were the Voyager missions so important? Where are they now, and where are they going? What is their ultimate fate? And that Golden Record…good idea or bad idea? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://...
Paul M. Sutter author
5.09.2017

How are we to understand quantum spin?

What does it mean for an electron to spin? Why do we have such a hard time measuring it? And why doesn’t Paul Dirac get any attention anymore, anyway? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.co...
Paul M. Sutter author
15.08.2017

AaS! 62: Why do some stars blow up?

What’s the balancing act happening inside stars? Why is iron the fusion limit? How long does it take for a star to blow? I discuss these questions and more in today’s Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episodes: http:...
8.08.2017

Update and Space Radio Preview

A quick update on Patreon, Astrotours, and a preview of the new Space Radio show!  Space Radio: http://www.SpaceRadioShow.com Support the show: http://www.patreon.com/pmsutter All episodes: http://www.AskASpaceman.com Follow on Twitter: http://www.twit...