Is the universe controlled by gigantic structures?

The idea that celestial objects exist within utterly immense cosmic structures is becoming inescapable.

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  • New findings in astronomy are making some astronomers doubt our basic model of the universe.
  • Alignments of celestial objects suggest that they may be embedded in large-scale structures.
  • Galaxies too far apart to be influencing each other are moving through space together.
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Could ‘Planet 9’ actually be an ancient black hole?

A new paper suggests a primordial black hole may be making things weird at the edge of our solar system.

Image source: Vadim Sadovski /IgorZh/Shutterstock/Big Think
  • Though a Planet 9 has been hypothesized, we can't seem to find it, at least not yet.
  • The strange orbits of distant bodies and weird gravitational anomalies beg for an explanation.
  • Scientists propose a hunt for telltale gamma rays from a primordial black hole.
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Michio Kaku: Feedback loops are creating consciousness

Our ability to make predictions about the future distinguishes our level of consciousness.

  • One of the great questions in all of science is where consciousness comes from.
  • When it comes to consciousness, Kaku believes different species have different levels of consciousness, based on their feedback loops needed to survive in space, society, and time.
  • According to the theoretical physicist, human beings' ability to use past experiences, memories, to predict the future makes us distinct among animals — and even robots (they're currently unable to understand, or operate within, a social hierarchy).
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The Big Bounce: Why our universe might be eternal

When it comes to theories of the universe, the Big Bang theory is almost accepted as a fact. However, it's still uncertain, and some scientists believe that the universe didn't began with a bang, but a bounce.

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  • The Big Bang theory is treated as the de facto way the universe began, but it's had some issues.
  • One issue was that it could not describe how the universe became uniform and homogeneous, which is what we observe today.
  • Physicists tweaked Big Bang theory to accommodate this, but the Big Bounce theory can address these issues without too much tweaking.
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What is the cosmic web?

When you zoom far enough out, our universe has a very unusual structure.

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  • Composed of massive filaments of galaxies separated by giant voids, the cosmic web is the name astronomers give to the structure of our universe.
  • Why does our universe have this peculiar, web-like structure?
  • The answer lies in processes that took place in the first few hundred thousands years after the Big Bang.
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