AaS! 175: Should We Be Afraid of the Dipole Repeller?

How do planets get their magnetic fields? What's a dynamo? What do magnetic fields have in common with plate tectonics? I discuss these questions and more in today's Ask a Spaceman! Support the show: ...

3 Marras 201531min

Is the universe dying? What is the ultimate fate of the universe? Will it transform into something else? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patr...

20 Loka 201542min

What's the history of the universe? What is the big bang? What came before? I discuss these questions and more in today's Ask a Spaceman! Support the show: http://www.patreon.com/pmsutter All episode...

6 Loka 201548min

How do spiral galaxies form? How do galaxies form in the first place, anyway? What's so special about spirals that make them look so cool? I discuss these questions and more in today's Ask a Spaceman!...

15 Syys 201535min

Will we ever actually colonize Mars? Why is it so hard to get to space? What are the challenges specific to Mars? I discuss these questions and more in today's Ask a Spaceman! Support the show: http:/...

1 Syys 201545min

How are space and time related? How long would it take to travel the Milky Way? What other tricks can you play with Special Relativity? I discuss these questions and more in today's Ask a Spaceman! Su...

18 Elo 201535min

What is spacetime? What was the breakthrough idea that led Einstein to develop Special Relativity? Who was right: Newton or Maxwell? I discuss these questions and more in today's Ask a Spaceman! Suppo...

4 Elo 201540min

What's the difference between a neutron star and a magnetar? How do you make a neutron star? How do they get so magnetic? I discuss these questions and more in today's Ask a Spaceman! Support the show...

21 Heinä 201532min