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When Worlds Collide
What: Worlds, they collide. And we have to get off. In this case, a sun is hitting us. 
Directed by: Rudolph Maté
Starring: Richard Derr, Barbara Rush, Peter Hansen
Featuring guest co-host
Daniel James Barker of Uncertainty Principle the Podcast
Recommended and Related Media
When Worlds Collide by Powerman 5000
2,000,000,000,000
Daniel’s episode on a topic that came up on the show – the 2016 update to our understanding of the average size of galaxies in our universe. The update which brought estimates from 2 billion up to around 2 trillion (that’s a lot).
Listen Uncertainty Principle the Podcast
Hubble Deep Field
A Vox minidoc about the original deep field image.
And another about the Hubble “Ultra” Deep Field
Show Notes
The “observable” universe
The part of the universe that we can, in principle, capture light from as a function of the speed of light and the expansion of the universe.
Galactic perspectives
Learning more about the breadth and contents of the universe since the 1950s. Hubble and “island universes.” Figuring out there are other galaxies and past and present ideas of just how many there are.
The modern space industry
Appreciation for where we are finally. Space travel becoming cheaper and cheaper and the legit settlement of other planets on the horizon.
When worlds actually collide
Spitzer detecting the aftermath of what seems to have been a planetary collision. Other planetary collisions in the history of our own solar system, like the one that produced our moon.
Artist’s conception of a collision around the star NGC 2547-ID8 -via NASA/JPL-Caltech
The incoming star: Bellus
Only 12x the size of earth. Luminosity and distance. What type of star could be in this range of size and luminosity?
Hertzsprung-Russell Diagram of star surface temperature and luminosity -via ESO
Uranus
Somehow we got to this topic. And now here is some history!
Effect on the solar system
Oh no! Will the planet be able to find a stable orbit in our solar system after presumably affecting the fairly stable orbits of the other planets? Star system escape velocities.
Landing on a new world
And not even having time to remark upon the clearly engineered structures on the surface before your whole planet is flung from its sun and everything freezes and you die.
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The post When Worlds Collide (feat. Daniel Barker, Science Communicator) : Episode 118 appeared first on Decipher SciFi.