AaS! 157: What's So Groovy About Gravitational Waves? (Part 1)

How do black holes form? Why are there only two sizes (Small and Big Gulp)? How do we know black holes exist, and what purpose do they serve in the universe? I discuss these questions and more in toda...

2 Jun 201540min

How big is the universe? What's outside the universe, and what are we expanding into? Can it even be put into words? I discuss these questions and more in today's Ask a Spaceman! Support the show: htt...

19 Mai 201539min

What are the chances of a comet hitting the earth? What other stuff can fall from space? What would the effects be, and how much do we need to worry? I discuss these questions and more in today's Ask ...

5 Mai 201538min

How do we know that dark matter exists? Are you sure that scientists aren't just making things up because they're lazy? What makes it dark anyway? I discuss these questions and more in today's Ask a S...

21 Apr 201529min

When did the first stars appear in the universe? How long did they live? Was it awesome when they blew up? Are there any around today? Did the universe go through puberty? I discuss these questions an...

7 Apr 201525min

It’s a special “transient” episode featuring the questions of Finn and Zakk from Dr. Batchelder’s class in Corbridge, England. They are celebrating a partial solar eclipse and asked: Where will the ec...

27 Mar 201518min

Where did the oceans come from? Yeah, the answer is space, but are there any more details? Where does water come from anyway? Did the oceans come along with the earth or did they come later? Do we kno...

20 Mar 201524min

Are there aliens...you know, out there? What are the chances of life appearing somewhere, anywhere, in the universe? Will we get to say "hi" and have a chat? Is there any life in our own solar system ...

20 Feb 201525min