The Universe: From the Big Bang to Infinity | SPACETIME Full Documentary

What came before the Big Bang? Is the universe infinite—and how will it end?
In this SPACETIME science special, astronaut Prof. Ulrich Walter traces the story of our cosmos: the Big Bang, rapid expansion, the observable universe, and the forces shaping everything—dark matter, dark energy, black holes, and more. Clear physics, epic scale.

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What You’ll See

Big Bang basics: 13.8 billion years and why “before” is tricky

Inflation & expansion: why space itself is stretching

The observable universe vs “infinite” universe

Light as a ruler: redshift, standard candles, CMB maps

Dark matter & dark energy—evidence, mysteries, implications

Black holes, wormholes, gravitational waves: what’s real vs sci-fi

The endgame: heat death, big rip, or something else?

Chapters
0:00 Origins: From “nothing” to everything
3:10 Inflation & the expanding cosmos
7:30 Measuring the Universe: Light, redshift, CMB
12:20 Structure Formation: Stars, galaxies, webs
16:50 Dark Matter: Clues & candidates
21:10 Dark Energy: Accelerating expansion
25:40 Black Holes, Wormholes & Waves
30:00 Fate of the Universe: Possible endings

Details & Keywords
The Universe documentary, SPACETIME Science Show, Ulrich Walter, Big Bang, cosmic inflation, observable universe, cosmic microwave background, redshift, standard candles, dark matter, dark energy, black holes, wormholes, gravitational waves, heat death, fate of the universe, cosmology documentary, astronomy

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