Terms like Universe, Observable Universe, and Hubble Volume often get used interchangeably and explained in very technical terms, but simply put, what are they and how do they differ?
What is a ‘Hubble Volume’?
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How Many Stars & Galaxies Could We Colonize?
The Universe is vast, and even voyages to neighboring stars may decades under known science, so how far can humanity colonize out into our galaxy or beyond? Produced, Written & Narrated by: Isaac Arthur Music Courtesy of Epidemic Sound...
Is Our Galaxy Going To Collide With Andromeda?
We often hear that our galaxy will collide with the Andromeda Galaxy, our nearest neighbor, but in reality this is just the biggest of many titanic galactic mergers to come. Intergalactic Voyages: https://youtu.be/6aBfLA_g3og Produced, Written & Narrated by: Isaac...
Intergalactic Voyages
Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video on Conformal Cyclic Cosmology: https://nebula.tv/videos/isaacarthur-conformal-cyclic-cosmology Far beyond our Moon and Mars and the other planets is...
Surveying for Habitable Interstellar Star Systems
Visit https://brilliant.org/isaacarthur/ to get started learning STEM for free, and the first 200 people will get 20% off their annual premium subscription. One day humanity might journey to new worlds and settle them, or discover life already on them, but first we'll...