What is a black hole firewall? How does it solve some paradoxes when it comes to black holes? Do the firewalls actually exist? I discuss these questions and more in today’s Ask a Spaceman!

What is a black hole firewall? How does it solve some paradoxes when it comes to black holes? Do the firewalls actually exist? I discuss these questions and more in today’s Ask a Spaceman!
What killed Mars billions of years ago? How can we kickstart a warming trend to transform Mars to look like Earth? What kind of technology do we need, and how well will it work? More with @PaulMattSutter at #365DaysOfAstro
What makes quantum computers so powerful? What kinds of problems can they solve? How do we actually build one? Find the answer with @PaulMattSutter at #365DaysOfAstro
How did we discover neutrinos? What don’t they make any sense? Why do they have mass, and how do they change their identities?
Is our universe a fractal? How do we test this? Are there any places in the universe that look like fractals?
What is the meaning of the horizon of the universe? Is the Earth in a special place? What’s the “dark flow”? Can this explain dark energy? Why don’t we believe it anymore?
What are the origins of the Heisenberg Uncertainty Principle? Is there any way to cheat it? What does this all have to do with waves? I discuss these questions and more in today’s Ask a Spaceman!
What does it take to have a career in astronomy? What does a professional astronomer actually do? What can you do to help astronomy? I discuss these questions and more in today’s Ask a Spaceman!
How did the universe begin? How will it end? What’s going on in here and how did we learn all this? I discuss these questions and more in today’s Ask a Spaceman!
What is a galaxy? What does our own galaxy look like? What are the different kinds of galaxies, and how did they get that way?