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PBS Space Time

Sound Waves from the Beginning of Time

Season 5 Episode 11 | 12m 48s

Invisible to the naked eye, our night sky is scattered with the 100s of billions of galaxies the fill the known universe. Like the stars, these galaxies form constellations – hidden patterns that echo the reverberations of matter and light in an epoch long before galaxies ever formed. These are the baryon acoustic oscillations, and they may hold the key to understanding the nature of dark energy.

Aired: 02/06/19
Extras
Watch • 17:19
PBS Space Time
Does the Planck Length Break E=MC^2?
I’d like to invite you to an even higher level of nerdom!
Episode: S10 E27 | 17:19
Watch • 11:43
PBS Space Time
Can the Universe Remember? Exploring Gravitational Memory
Gravitational tsunamis exist and we’re on the verge of being able to detect them.
Episode: S10 E26 | 11:43
Watch • 18:40
PBS Space Time
How Can Humanity Become a Kardashev Type 1 Civilization?
Will we ever become a Kardeshev Type-1 civilization and how can we get there?
Episode: S10 E25 | 18:40
Watch • 14:05
PBS Space Time
Do Neutron Stars Shine In Dark Matter?
New data is telling us that Neutron stars may make one of the most popular dark matter candidates.
Episode: S10 E24 | 14:05
Watch • 15:14
PBS Space Time
What If the Cosmological Constant Is Not Constant?
Is Dark Energy Getting Weaker?
Episode: S10 E23 | 15:14
Watch • 16:08
PBS Space Time
What If The Universe Did Not Start With The Big Bang?
Here’s the story we like to tell about the beginning of the universe.
Episode: S10 E22 | 16:08
Watch • 17:44
PBS Space Time
The New Physics of Black Hole Star Capture | Extreme Tidal Disruption Events
We’ve never seen a TDE in the Milky Way, but we’ve seen them in distant galaxies.
Episode: S10 E21 | 17:44
Watch • 16:51
PBS Space Time
Can We Test Quantum Gravity?
Let’s talk about quantum gravity experiments that can be done here on Earth!
Episode: S10 E20 | 16:51
Watch • 19:25
PBS Space Time
Is Gravity RANDOM Not Quantum?
What if gravity isn’t weirdly quantum at all, but rather … just a bit messy?
Episode: S10 E19 | 19:25
Watch • 17:02
PBS Space Time
Can We Create New Elements Beyond the Periodic Table
Have we reached the end of the line of discoverable elements?
Episode: S10 E18 | 17:02
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Watch • 17:19
PBS Space Time
Does the Planck Length Break E=MC^2?
I’d like to invite you to an even higher level of nerdom!
Episode: S10 E27 | 17:19
Watch • 11:43
PBS Space Time
Can the Universe Remember? Exploring Gravitational Memory
Gravitational tsunamis exist and we’re on the verge of being able to detect them.
Episode: S10 E26 | 11:43
Watch • 18:40
PBS Space Time
How Can Humanity Become a Kardashev Type 1 Civilization?
Will we ever become a Kardeshev Type-1 civilization and how can we get there?
Episode: S10 E25 | 18:40
Watch • 14:05
PBS Space Time
Do Neutron Stars Shine In Dark Matter?
New data is telling us that Neutron stars may make one of the most popular dark matter candidates.
Episode: S10 E24 | 14:05
Watch • 15:14
PBS Space Time
What If the Cosmological Constant Is Not Constant?
Is Dark Energy Getting Weaker?
Episode: S10 E23 | 15:14
Watch • 16:08
PBS Space Time
What If The Universe Did Not Start With The Big Bang?
Here’s the story we like to tell about the beginning of the universe.
Episode: S10 E22 | 16:08
Watch • 17:44
PBS Space Time
The New Physics of Black Hole Star Capture | Extreme Tidal Disruption Events
We’ve never seen a TDE in the Milky Way, but we’ve seen them in distant galaxies.
Episode: S10 E21 | 17:44
Watch • 16:51
PBS Space Time
Can We Test Quantum Gravity?
Let’s talk about quantum gravity experiments that can be done here on Earth!
Episode: S10 E20 | 16:51
Watch • 19:25
PBS Space Time
Is Gravity RANDOM Not Quantum?
What if gravity isn’t weirdly quantum at all, but rather … just a bit messy?
Episode: S10 E19 | 19:25
Watch • 17:02
PBS Space Time
Can We Create New Elements Beyond the Periodic Table
Have we reached the end of the line of discoverable elements?
Episode: S10 E18 | 17:02