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Neil deGrasse Tyson

๐Ÿ‘ค Speaker
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15754 total appearances
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StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

So this could be matter, if it's matter at all, that interacts even less with less strength than a neutrino would.

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

So some law of physics that we take as canon was broken or violated in the early universe.

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

If matter always comes in matter-antimatter pairs, and we won that contest as this excess froth.

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

Right.

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

So you just declare that some rule got broken in the early universe?

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

So you can imagine-

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

that matter and antimatter were strictly equal all the way down and still have a functioning universe?

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

Maybe not with stuff in it, but would it be its own space, its own place?

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

And could you have a universe that has just dark matter and dark energy in it and no regular matter?

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

So from what I've read, and I have a cursory understanding of this, I have like an evening news account of this.

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

At different times from the early universe to today...

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

Matter, gravity, dark matter, dark energy, all have different ways or different strengths of their capacity to manifest.

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

Okay.

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

So who's dominating today?

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

So we're diluting our gravity and not diluting the dark energy.

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

Okay, so you compare the two, the dark energy systematically wins out.

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

So dark energy...

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

feeds off the vacuum of an expanding universe.

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

You know, weirdly, that reminds me of the Weeping Angels episode of Doctor Who, where Weeping Angels, they feed off of your life energy.

StarTalk Radio
Cosmic Queries โ€“ Origins of the Universe, with Janna Levin

And you disappear out of your time, and you show up in the past.