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Astronomy Cast

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May 11, 2020

Every year, more and more people are making their way to space. Some private citizens have already gotten their astronaut wings, paying for a trip to space out of their own pocket. What are the ethical implications of this as the costs of spaceflight come down?


May 6, 2020

The key to surviving in space will be learning how to live off the land. Instead of carrying all your fuel, water and other resources from Earth, extract them locally from your destination. It's called In Situ Resource Utilization, and if we can figure it out, it'll change everything.


Apr 27, 2020

567: When Satellites Need a House Call

Astronomy Cast 567: When Satellites Need a House Call

by Fraser Cain & Dr. Pamela Gay

Space is really far away, so when you send a satellite out into the void, that's pretty much the last you're going to be able to work on it. And if anything goes wrong, too bad, you're out a...


Apr 20, 2020

566: When Comets Fall Apart

Astronomy Cast 566: When Comets Fall Apart

by Fraser Cain & Dr. Pamela Gay

As everyone knows, the Universe owes us a bright comet. There have been a lot of promising candidates, but in the end, they always fail to live up to our expectations. Comets keep on breaking up with...


Apr 13, 2020

565: When Worlds Collide

Astronomy Cast 565: When Worlds Collide

by Fraser Cain & Dr. Pamela Gay

So much of our Solar System has been shaped by enormous collisions early on in our history. Seriously, the nature of every planet in the Solar System has some evidence of massive impacts during some point in its history.