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PBS Space Time
Was the Milky Way a Quasar?
Season 6
Episode 12
The Milky Way galaxy is relatively calm by the destructive standards of the rest of the Universe, and compared to its own very violent past. But just recently we discovered that its violent past was much more recent than we thought - and could even happen again.
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13:01
Of all the possible ends of the universe, vacuum decay would be the most thorough.
13:43
It may very well be possible to communicate between worlds.
14:30
A newly discovered white dwarf may change our understanding of all cosmology.
14:05
Although elusive, the quantum spin has led to some of the deepest insights we now know.
14:01
Entropy is behind one of the most fundamental laws of physics.
12:22
The more time and space are divided, the distance between them may not exist.
13:44
The accumulation of space junk increases collisions known as the Kessler Syndrome.
11:34
If Planck relics are real, then the black holes may just be everywhere.
10:48
Quantum mechanics forbids us from measuring the universe. But we try with this principle.
