AaS! 38: How Do We See Beyond the Visible?
How do we make observations beyond visible light? What exactly is a telescope? And what's up with NASA adding colors to images? I discuss these questions and more in today's Ask a Spaceman! Support th...
16 Aug 201634min
AaS! 37: What is the Cosmic Microwave Background (Part 2)?
Part 2 of What is the cosmic microwave background? What causes those bumps and wiggles? What does it tell us about the early universe, and the universe we have today? What does the universe have to do...
2 Aug 201646min
AaS! 36: What is the Cosmic Microwave Background? (Part 1)
What is the cosmic microwave background? How was it discovered? What did it have to do with the great debate between Big Bang theory and the Steady State model? I discuss these questions and more in t...
19 Juli 201643min
AaS! 35: What Are "Virtual Particles"?
What are virtual particles? What do they have to do with waving fields around? And why can't physicists use meaningful jargon words? I discuss these questions and more in today's Ask a Spaceman! Suppo...
5 Juli 201636min
AaS! 34: What Is the Great Attractor?
What is the so-called Great Attractor? What's the Zone of Avoidance, and is it scary? What makes galaxies move in the first place? I discuss these questions and more in today's Ask a Spaceman! Support...
21 Juni 201639min
AaS! 33: What If the Moon Disappeared?
What would happen if the moon disappeared tomorrow? What makes it so special in the first place? Does it really *do* anything useful? I discuss these questions and more in today's Ask a Spaceman! Supp...
7 Juni 201630min
AaS! 32: Where Do Nebulae Come From?
How are nebulae formed or created? Where do they go when they're done being nebulae? How is it linked to the formation of stars? I discuss these questions and more in today's Ask a Spaceman! Support t...
17 Maj 201636min
AaS! 31: How Can the Universe Expand Faster Than Light?
How can the universe expand faster than the speed of light? What does it mean for Special Relativity to be "local"? Is there a conflict between General and Special Relativity? I discuss these question...
3 Maj 201635min
