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AaS! 9: How Big Is the Universe?
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!
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Published on 10 years, 3 months ago
AaS! 8: Will a Comet Kill Us All?
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…
Published on 10 years, 4 months ago
AaS! 7: How Do We Know That Dark Matter Exists?
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 …
Published on 10 years, 4 months ago
AaS! 6: When Did the First Stars Appear?
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 a…
Published on 10 years, 5 months ago
AaS! Transient Special: When is the next eclipse?
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 e…
Published on 10 years, 5 months ago
AaS! 5: Where Did the Oceans Come From?
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 kn…
Published on 10 years, 5 months ago
AaS! 4: Are There Aliens...Out There?
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…
Published on 10 years, 6 months ago