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PBS Space Time

Could LIGO Find Massive Alien Spaceships?

Season 9 Episode 13 | 16m 42s

The gravitational wave detector LIGO has made hugely important discoveries. But what else might be hiding in the ripples’ of spacetime? Oh, I know: how about the gravitational wakes caused by planet-sized alien spacecraft accelerating to near light speed.

Aired: 05/16/23
Extras
Watch • 16:28
PBS Space Time
How To Detect Faster Than Light Travel
Faster than light travel may produce gravitational waves that we could see here on Earth.
Episode: S10 E15 | 16:28
Watch • 20:07
PBS Space Time
Can a Particle Be Neither Matter Nor Force?
All particles belong to two large groups: fermions and bosons.
Episode: S10 E14 | 20:07
Watch • 16:11
PBS Space Time
Will The Sun’s Magnetic Field Flip This Year?
Just how much stronger is this year’s solar activity going to get?
Episode: S10 E13 | 16:11
Watch • 17:25
PBS Space Time
Is It Impossible To Cross The Event Horizon? | Black Hole Firewall Paradox
So you’ve decided to jump into a black hole...
Episode: S10 E12 | 17:25
Watch • 12:51
PBS Space Time
What’s The Universe’s Strongest Particle Accelerator?
We only recently figured out where cosmic rays are coming from.
Episode: S10 E11 | 12:51
Watch • 13:28
PBS Space Time
Can Black Holes Unify General Relativity & Quantum Mechanics?
Black hole complementarity may force us to rethink what it means to say that it exists.
Episode: S10 E10 | 13:28
Watch • 20:15
PBS Space Time
Interstellar Expansion WITHOUT Faster Than Light Travel
To travel the stars without faster than light travel we’re going to need a generation ship.
Episode: S10 E9 | 20:15
Watch • 16:19
PBS Space Time
What Happens If You Jump Into A Black Hole?
Today we are jumping into a black hole. Again.
Episode: S10 E8 | 16:19
Watch • 15:36
PBS Space Time
Why Is The World Rushing Back To The Moon?
The Moon: humanity’s first destination beyond our atmosphere.
Episode: S10 E7 | 15:36
Watch • 15:07
PBS Space Time
How Eclipses Revealed Our Solar System
So how did humans figure out the solar system? Eclipses!
Episode: S10 E6 | 15:07
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  • PBS Space Time Season 5
  • PBS Space Time Season 4
  • PBS Space Time Season 3
  • PBS Space Time Season 2
  • PBS Space Time Season 1
Watch • 16:28
PBS Space Time
How To Detect Faster Than Light Travel
Faster than light travel may produce gravitational waves that we could see here on Earth.
Episode: S10 E15 | 16:28
Watch • 20:07
PBS Space Time
Can a Particle Be Neither Matter Nor Force?
All particles belong to two large groups: fermions and bosons.
Episode: S10 E14 | 20:07
Watch • 16:11
PBS Space Time
Will The Sun’s Magnetic Field Flip This Year?
Just how much stronger is this year’s solar activity going to get?
Episode: S10 E13 | 16:11
Watch • 17:25
PBS Space Time
Is It Impossible To Cross The Event Horizon? | Black Hole Firewall Paradox
So you’ve decided to jump into a black hole...
Episode: S10 E12 | 17:25
Watch • 12:51
PBS Space Time
What’s The Universe’s Strongest Particle Accelerator?
We only recently figured out where cosmic rays are coming from.
Episode: S10 E11 | 12:51
Watch • 13:28
PBS Space Time
Can Black Holes Unify General Relativity & Quantum Mechanics?
Black hole complementarity may force us to rethink what it means to say that it exists.
Episode: S10 E10 | 13:28
Watch • 20:15
PBS Space Time
Interstellar Expansion WITHOUT Faster Than Light Travel
To travel the stars without faster than light travel we’re going to need a generation ship.
Episode: S10 E9 | 20:15
Watch • 16:19
PBS Space Time
What Happens If You Jump Into A Black Hole?
Today we are jumping into a black hole. Again.
Episode: S10 E8 | 16:19
Watch • 15:36
PBS Space Time
Why Is The World Rushing Back To The Moon?
The Moon: humanity’s first destination beyond our atmosphere.
Episode: S10 E7 | 15:36
Watch • 15:07
PBS Space Time
How Eclipses Revealed Our Solar System
So how did humans figure out the solar system? Eclipses!
Episode: S10 E6 | 15:07