AaS! 251: Are the Cosmic Voids Really Empty?
Ask a Spaceman!8 Jul 2025

AaS! 251: Are the Cosmic Voids Really Empty?

How do we actually define voids? Are there regions within them that are truly empty? What would it be like to be inside one? I discuss these questions and more in today's Ask a Spaceman!

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Hosted by Paul M. Sutter.

Episoder(274)

AaS! 212: Where Do All the Elements Come From?

AaS! 212: Where Do All the Elements Come From?

What processes create all the elements? Why are some elements more common than others? How does fusion happen inside and outside of a star? I discuss these questions and more in today's Ask a Spaceman...

21 Nov 202341min

AaS! 211: Will AI Take Over Astronomy?

AaS! 211: Will AI Take Over Astronomy?

How long have astronomers been using artificial intelligence? How do computers sift through massive amounts of data? Will AI discover something new about the universe? I discuss these questions and mo...

7 Nov 202347min

AaS! 210: How Does Space Affect the Climate?

AaS! 210: How Does Space Affect the Climate?

What triggers ice ages and other climate events? How are sunspot cycles and orbital motions related to climate patterns? What does Jupiter have to do with all this? I discuss these questions and more ...

17 Okt 202336min

AaS! 209: What Secrets Are Hiding in Triton?

AaS! 209: What Secrets Are Hiding in Triton?

What's so cool about Triton? How did it end up in orbit around Neptune, and what can we learn from it? Could we send a mission there one day? I discuss these questions and more in today's Ask a Spacem...

3 Okt 202335min

AaS! 208: Where Are All the White Holes?

AaS! 208: Where Are All the White Holes?

How are white holes different from black holes? What would happen if you were stuck inside of one? Why don't they appear in the universe? I discuss these questions and more in today's Ask a Spaceman! ...

19 Sep 202334min

AaS! 207: How Far Do We Travel in Our Lives?

AaS! 207: How Far Do We Travel in Our Lives?

What is the combined motion of everything in the universe? How does all of that influence us? Are we just going around in circles, or is there something more? I discuss these questions and more in tod...

5 Sep 202336min

AaS! 206: What are the Weirdest Names in Astronomy?

AaS! 206: What are the Weirdest Names in Astronomy?

What are some wild stories behind names in astronomy and physics? How did we get the jargon words that we did? What are some of the funniest names? I discuss these questions and more in today's Ask a ...

15 Aug 202327min

AaS! 205: What's the Difference Between Science and Pseudoscience?

AaS! 205: What's the Difference Between Science and Pseudoscience?

What's the difference between science and pseudoscience? What is a scientific mindset? How are we able to spot pseudoscience when it's happening? I discuss these questions and more in today's Ask a Sp...

1 Aug 202333min

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