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PBS Space Time

The Alchemy of Neutron Star Collisions

Season 5 Episode 23 | 11m 24s

Carl Sagan’s famous words: “We are star stuff” refers to a mind-blowing idea – that most atomic nuclei in our bodies were created in the nuclear furnace and the explosive deaths of stars that lived in the ancient universe. Many heavy elements - includes most precious metals - were produced in an even more spectacular event: the collision of neutron stars.

Aired: 06/05/19
Extras
Watch • 19:02
PBS Space Time
Dark Energy Is Driving the Universe Apart. We May Finally Know Why.
The universe expands faster. “Dark energy” may not be constant after all.
Episode: S11 E22 | 19:02
Watch • 16:26
PBS Space Time
Our Only Chance To Finally Unlock The Gravity Particle
There’s a new generation of experiments that may unlock the gravity particle.
Episode: S11 E21 | 16:26
Watch • 18:33
PBS Space Time
The Particle We’ve Been Chasing for 30 Years Might Not Exist
The universe thrums with quantum fields, except something may be missing: the sterile neutrino.
Episode: S11 E20 | 18:33
Watch • 18:42
PBS Space Time
The Universe Itself Might Be Hiding the Gravity Particle From Us
Gravitons, the particle of quantum gravity, may be impossible to detect.
Episode: S11 E19 | 18:42
Watch • 1:38:18
PBS Space Time
Black Holes. Explained. For 1.5 Hours.
We go in depth on black holes: the strangest objects in the universe!
Special: 1:38:18
Watch • 25:02
PBS Space Time
Heisenberg Made a Discovery in 1925. We Still Can't Explain It
2025 was the international year of quantum science, but today we examine its origins.
Episode: S11 E18 | 25:02
Watch • 21:17
PBS Space Time
Do We Live in the Rarest Solar System In The Universe? We're about to find out!
We’ve found lots of “habitable” worlds but we don’t know what factors are needed for life.
Episode: S11 E17 | 21:17
Watch • 21:31
PBS Space Time
The Gravity Particle Should Exist. So Where Is It?
What is the graviton, and does it even exist?
Episode: S11 E16 | 21:31
Watch • 23:22
PBS Space Time
We Were Wrong About the Quantum Eraser!
Does quantum mechanics allow the future to retroactively influence the past or not?
Episode: S11 E14 | 23:22
Watch • 19:52
PBS Space Time
Why Antimatter Engines Could Launch In Your Lifetime
Antimatter drives sound like science fiction, but they may not be as far as you think.
Episode: S11 E15 | 19:52
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Watch • 19:02
PBS Space Time
Dark Energy Is Driving the Universe Apart. We May Finally Know Why.
The universe expands faster. “Dark energy” may not be constant after all.
Episode: S11 E22 | 19:02
Watch • 16:26
PBS Space Time
Our Only Chance To Finally Unlock The Gravity Particle
There’s a new generation of experiments that may unlock the gravity particle.
Episode: S11 E21 | 16:26
Watch • 18:33
PBS Space Time
The Particle We’ve Been Chasing for 30 Years Might Not Exist
The universe thrums with quantum fields, except something may be missing: the sterile neutrino.
Episode: S11 E20 | 18:33
Watch • 18:42
PBS Space Time
The Universe Itself Might Be Hiding the Gravity Particle From Us
Gravitons, the particle of quantum gravity, may be impossible to detect.
Episode: S11 E19 | 18:42
Watch • 25:02
PBS Space Time
Heisenberg Made a Discovery in 1925. We Still Can't Explain It
2025 was the international year of quantum science, but today we examine its origins.
Episode: S11 E18 | 25:02
Watch • 21:17
PBS Space Time
Do We Live in the Rarest Solar System In The Universe? We're about to find out!
We’ve found lots of “habitable” worlds but we don’t know what factors are needed for life.
Episode: S11 E17 | 21:17
Watch • 21:31
PBS Space Time
The Gravity Particle Should Exist. So Where Is It?
What is the graviton, and does it even exist?
Episode: S11 E16 | 21:31
Watch • 23:22
PBS Space Time
We Were Wrong About the Quantum Eraser!
Does quantum mechanics allow the future to retroactively influence the past or not?
Episode: S11 E14 | 23:22
Watch • 19:52
PBS Space Time
Why Antimatter Engines Could Launch In Your Lifetime
Antimatter drives sound like science fiction, but they may not be as far as you think.
Episode: S11 E15 | 19:52
Watch • 19:14
PBS Space Time
Why Life on Mars Will Doom Humanity
Life on mars could result in humanity’s destruction via Fermi Paradox.
Episode: S11 E13 | 19:14