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Interstellar Expansion WITHOUT Faster Than Light Travel

Season 10 Episode 9 | 20m 15s

In the far future we may have advanced propulsion technologies, but what if those technologies never materialize? Are we imprisoned by the vastness of space—doomed to remain in the solar system of our origin? Perhaps not. A possible path to a contemporary cosmic dream may just be to build a ship which can support human life for several generations; a so-called generation ship.

Aired: 05/15/24
A decade later, a leading theory may finally explain Tabby’s Star, the galaxy’s weirdest star.
LIGO may have found an impossible black hole, hinting at primordial relics from the Big Bang.
DESI and DES studied dark energy. Together, what can they tell us?
Could sending a quantum twin across the galaxy make you both old and young at the same time?
It's possible that an event horizon is forming right behind and you won't know until its too late.
Are there no alien signals to find... or do we need to update how we search for them?
Physicists hope Planck stars can save us from black hole singularities and paradoxes.
Galaxies older than the universe? Webb's findings keep defying our best explanations.
Earth's core: solid or liquid? Yes — we know more about distant galaxies than our own interior.
Gödel found a time-travel solution in General Relativity, revealing spacetime can loop on itself.