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    "segs": [ {
      "utf8": "Neutron stars are one of the most extreme and violent things in the universe."
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      "utf8": "before they eventually turn into white dwarfs."
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      "utf8": "But in stars many times the mass of our Sun,"
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      "utf8": "things get interesting when the helium is exhausted."
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    "segs": [ {
      "utf8": "For a moment, the balance of pressure and radiation tips,"
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    "segs": [ {
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    "segs": [ {
      "utf8": "neon to oxygen in a year,"
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    "segs": [ {
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    "segs": [ {
      "utf8": "And then…"
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      "utf8": "It has no energy to give and cannot be fused."
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    "segs": [ {
      "utf8": "The fusion suddenly stops, and the balance ends."
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    "segs": [ {
      "utf8": "Particles, like electrons and protons, really don’t want to be near each other."
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    "segs": [ {
      "utf8": "But the pressure of the collapsing star is so great"
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      "utf8": "An iron ball, the size of the Earth,"
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      "utf8": "But not just the core; The whole star implodes,"
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      "utf8": "This implosion bounces off the iron core,"
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    "segs": [ {
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    "segs": [ {
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    "segs": [ {
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    "segs": [ {
      "utf8": "Put another way, that’s Mount Everest in a cup of coffee."
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    "segs": [ {
      "utf8": "and, if it were any denser, it would become one."
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    "segs": [ {
      "utf8": "meaning you can see the front and parts of the back."
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    "segs": [ {
      "utf8": "Their surfaces reach 1,000,000 degrees Celsius, compared to a measly 6,000 degrees for our Sun."
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    "segs": [ {
      "utf8": "Okay, let’s look inside a neutron star."
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      "utf8": "Eventually, beneath the pasta, we reach the core."
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    "segs": [ {
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    "segs": [ {
      "utf8": "That’s all pretty heavy stuff, literally, so let’s go back out into space."
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