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Science. Philosophy. The cosmic perspective.

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“Astrology is a HOAX!” — Carl Sagan

“Astrology is a HOAX!” — Carl Sagan

32,007 次观看

The Great Filter may lie ahead of us rather than behind us.

The Great Filter may lie ahead of us rather than behind us.

55,633 次观看

Videos

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Carl Sagan’s prediction about America, made 31 years ago.

Carl Sagan’s prediction about America, made 31 years ago.

1,659,798 次观看 • 7 个月前

Richard Dawkins most famous reply to: "What if you're wrong?"

Richard Dawkins most famous reply to: "What if you're wrong?"

2,903,158 次观看 • 1 年前

The Space Shuttle Challenger disaster was a major space tragedy that occurred on 28 January 1986, when NASA’s Space Shuttle Challenger broke apart 73 seconds after launch, killing all seven astronauts on board.

The Space Shuttle Challenger disaster was a major space tragedy that occurred on 28 January 1986, when NASA’s Space Shuttle Challenger broke apart 73 seconds after launch, killing all seven astronauts on board.

725,969 次观看 • 4 个月前

Stephen Fry's argument against God and His morals

Stephen Fry's argument against God and His morals

2,459,742 次观看 • 1 年前

This is something many religious people often misunderstand about atheists.

This is something many religious people often misunderstand about atheists.

794,869 次观看 • 1 年前

Here’s an incredible visualization showing the evolution of the Moon, 4.5 billion years compressed into two minutes. Credit: NASA Goddard

Here’s an incredible visualization showing the evolution of the Moon, 4.5 billion years compressed into two minutes. Credit: NASA Goddard

179,253 次观看 • 4 个月前

When Ted Turner asked Carl Sagan if he was a socialist, Sagan gave an answer that redefines what it means to be a civilized society. It isn't about politics or ideology. It is about how we treat the most vulnerable among us.

When Ted Turner asked Carl Sagan if he was a socialist, Sagan gave an answer that redefines what it means to be a civilized society. It isn't about politics or ideology. It is about how we treat the most vulnerable among us.

272,817 次观看 • 8 个月前

Bertrand Russell’s timeless message to future generations

Bertrand Russell’s timeless message to future generations

184,277 次观看 • 7 个月前

Brian Greene explains the double-slit experiment on The Late Show with Stephen Colbert.

Brian Greene explains the double-slit experiment on The Late Show with Stephen Colbert.

344,853 次观看 • 1 年前

When Ted Turner asked Carl Sagan if he was a socialist, Sagan gave an answer that redefined what it means to be a civilized society. It wasn’t about politics or ideology.

When Ted Turner asked Carl Sagan if he was a socialist, Sagan gave an answer that redefined what it means to be a civilized society. It wasn’t about politics or ideology.

99,912 次观看 • 4 个月前

Neil deGrasse Tyson explains the God of the Gaps

Neil deGrasse Tyson explains the God of the Gaps

333,973 次观看 • 1 年前

When Ted Turner asked Carl Sagan if he was a socialist, Sagan gave the answer America keeps failing to learn.

When Ted Turner asked Carl Sagan if he was a socialist, Sagan gave the answer America keeps failing to learn.

236,345 次观看 • 1 年前

Neil deGrasse Tyson on who is the greatest scientific mind in history.

Neil deGrasse Tyson on who is the greatest scientific mind in history.

278,624 次观看 • 1 年前

Richard Feynman on how physics differs from mathematics.

Richard Feynman on how physics differs from mathematics.

143,542 次观看 • 8 个月前

The very first clip of COSMOS Thank you, Carl, for taking us on this journey. We remain forever in your debt.

The very first clip of COSMOS Thank you, Carl, for taking us on this journey. We remain forever in your debt.

34,332 次观看 • 2 个月前

Isaac Asimov’s take on morality without God. Do you agree with him?

Isaac Asimov’s take on morality without God. Do you agree with him?

104,555 次观看 • 8 个月前

Hi everyone, please spare a few minutes to watch this. We Are One Planet by Carl Sagan Credit: PSNy2kUK/YouTube

Hi everyone, please spare a few minutes to watch this. We Are One Planet by Carl Sagan Credit: PSNy2kUK/YouTube

66,355 次观看 • 6 个月前

Blue Marble from Artemis II, in the narration of Carl Sagan

Blue Marble from Artemis II, in the narration of Carl Sagan

53,811 次观看 • 5 个月前

Do you agree with Carl Sagan? 🎬 CarlSaganDotCom

Do you agree with Carl Sagan? 🎬 CarlSaganDotCom

115,662 次观看 • 1 年前