AaS! 226: Does the Universe Get Shorter When You Go Faster?
Ask a Spaceman!18 Kesä 2024

AaS! 226: Does the Universe Get Shorter When You Go Faster?

How does length contraction work in relativity? Do moving objects really get shorter? What about from their perspective? How are we supposed to make sense of any measurement? I discuss these questions and more in today's Ask a Spaceman!

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Hosted by Paul M. Sutter.

Jaksot(271)

AaS! 169: What Is Loop Quantum Gravity?

AaS! 169: What Is Loop Quantum Gravity?

Why do we care about loop quantum gravity? Is it a viable path to uniting quantum mechanics and general relativity? What does it mean for spacetime to be discrete? I discuss these questions and more i...

1 Helmi 202239min

AaS! 168: Can We Get Some Love for Globular Clusters?

AaS! 168: Can We Get Some Love for Globular Clusters?

How are globular clusters so old? Where did they come from, and how are they linked to galaxy formation? What makes them so globular, anyway? I discuss these questions and more in today's Ask a Spacem...

18 Tammi 202229min

AaS! 167: Do We Live In a Giant Simulation?

AaS! 167: Do We Live In a Giant Simulation?

What is the simulation hypothesis? Is it just pseudoscience? How do we grapple with its implications? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon...

4 Tammi 202246min

AaS! 166: What's the Truth Behind 'Oumuamua?

AaS! 166: What's the Truth Behind 'Oumuamua?

Where did 'Oumuamua come from? What is it made of, and how did it end up here? Is it really an artifact of an alien civilization? I discuss these questions and more in today's Ask a Spaceman! Support ...

21 Joulu 202147min

AaS! 165: What Comes After the James Webb Space Telescope?

AaS! 165: What Comes After the James Webb Space Telescope?

What missions will come after the James Webb Space Telescope launches? What new discoveries await us? How long will they take to start? I discuss these questions and more in today's Ask a Spaceman! Su...

7 Joulu 202135min

AaS! 164: Where Can We Find Diamond Rain?

AaS! 164: Where Can We Find Diamond Rain?

How do giant planets make diamond rain? Does it really, you know, rain? Where does diamond rain exist? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreo...

16 Marras 202127min

AaS! 163: Will Our Universe End in a False Vacuum Decay?

AaS! 163: Will Our Universe End in a False Vacuum Decay?

What is a vacuum, and what makes a false one? What happened in the early universe to bring about our current physics? Will it happen again? If so, when? I discuss these questions and more in today's A...

2 Marras 202133min

AaS! 162: What the Heck are Gamma Ray Bursts?

AaS! 162: What the Heck are Gamma Ray Bursts?

What are the different kinds of gamma ray bursts? What powers them? What do we still have to understand about them? I discuss these questions and more in today's Ask a Spaceman! Support the show: http...

19 Loka 202134min

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