Universe Today Podcast

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Episode 436: 355: The Problem of Power in Space. NASA's New Kilopower Reactor Jun 08, 2018

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Space is the worst. It’s got hostile radiation, a total lack of atmosphere, near absolute zero temperatures, problematic gravity wells, and worse. In order to keep your spacecraft alive in that environment, you need electricity to keep it warm. Not to mention all the power to run scientific instruments and the transmitters to send that data home. Getting enough power in space is a big problem.

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Episode 435: QA 59: Why Does the Deep Future Make Us Sad? And More... Jun 06, 2018

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In this week's questions show, I talk about entry level telescopes, why we can see galaxies billions of light years away but not objects on the Moon, and why events that won't happen billions of years into the future still make us kind of sad.

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Episode 434: Open Space 8: Guest Dr. Paul Sutter from Ask a Spaceman Jun 04, 2018

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Paul was busy last week, but now he's ready to join me for an hour answering your mind bending questions about space and astronomy. Bring all your complex questions about dark matter, black holes and the Big Bang and he'll sort it all out.

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Episode 433: 354: Are We The First Advanced Civilization in The Solar System? May 31, 2018

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Humans are believed to be the most technologically advanced civilization that’s ever set foot on Earth, or really anywhere in the Solar System. But are we the first?

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Episode 432: QA 58: Can We Live If The Sun Dies? and More, Featuring Astronaut Mike Massimino May 29, 2018

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In this week's questions show, astronaut Mike Massimino answers a question about astronaut training, I wonder how we could survive if the Sun dies, and explain why the shuttle's fuel tank was orange.

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Episode 431: Open Space 7: Guest Eric Berger from Ars Technica May 28, 2018

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In my opinion, Eric Berger (aka @sciguyspace) is one of the top journalists working on stories about spaceflight, especially SpaceX, Blue Origins and NASA. Eric will join me live to answer your questions about the state of private and public space exploration.

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Episode 430: 353: Cosmological Horizons. The Past, Present and Future Limits of Astronomy with Dr. Paul Sutter May 22, 2018

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The observable Universe is finite, which means there are limits to what we can see, now and deep into the future. Dr. Paul Sutter joins Fraser to talk about the various cosmological horizons that surround us.

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Episode 429: Open Space 6: Live QA with Fraser Cain May 21, 2018

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It was just me this week, answering questions from the YouTube audience.

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Episode 428: QA 57: Is The Fermi Paradox Really a Paradox? And More... May 17, 2018

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In this week's questions show, the viewers try to suggest names for balloon rockets. Could live from Venus escaped to Earth? Is the Fermi Paradox really a paradox when we've only explored a little bit of the galaxy? And More

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Episode 427: 352: How Do Ion Engines Work? The Most Efficient Propulsion System Out There May 15, 2018

Show notes

People always ask me why we’re stuck with chemical rockets. Seriously, exploding a bunch of hydrogen or kerosene is the best we can do?

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