Ask a Spaceman!

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 ...

15 Touko 201838min

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 ...

1 Touko 201842min

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 ...

17 Huhti 201834min

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 ...

3 Huhti 201838min

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, Icel...

20 Maalis 201831min

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 Sp...

6 Maalis 201831min

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:/...

20 Helmi 201826min

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 que...

6 Helmi 201830min