1 Сезон
46 Эпизод
Crash Course Astronomy - Season 1 Episode 42 Эпизод 42
Thanks to observations of galaxy redshifts, we can tell that the universe is EXPANDING! Knowing that the universe is expanding and how quickly its expanding also allows us to run the clock backwards 14 billion years to the way the universe began - with a bang.
- Год: 2015
- Страна:
- Жанр: Documentary
- Студия: YouTube
- Ключевое слово: astronomy
- Директор:
- В ролях: Phil Plait