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PBS Space Time

Did Dark Energy Just Disappear?

Season 3 Episode 3 | 12m 14s

Why are we talking about dark energy again? Because another team has just announced a new analysis of updated supernova data. They claim that the data are consistent with there being NO dark energy – no accelerating expansion. They suggest that the universe may just be expanding at a constant rate – never speeding up, but also not slowing down.

Aired: 11/08/16
Extras
Watch • 15:35
PBS Space Time
Does Infinity - Infinity = an Electron
What do you get if you combine something that’s infinitely massive and negative infinitely massive?
Episode: S10 E30 | 15:35
Watch • 13:39
PBS Space Time
What Does An Electron Actually Look Like?
What does an electron really look like?
Episode: S10 E29 | 13:39
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
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  • PBS Space Time Season 2
  • PBS Space Time Season 1
Watch • 15:35
PBS Space Time
Does Infinity - Infinity = an Electron
What do you get if you combine something that’s infinitely massive and negative infinitely massive?
Episode: S10 E30 | 15:35
Watch • 13:39
PBS Space Time
What Does An Electron Actually Look Like?
What does an electron really look like?
Episode: S10 E29 | 13:39
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