What happened before the Big Bang?

Asking science to determine what happened before time began is like asking, "Who were you before you were born?"

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  • Science can allow us to determine what happened trillionths of a second after the Big Bang.
  • But it likely never will be possible to know what brought about the Big Bang.
  • As frustrating as it might be, some things are entirely unknowable. And that's a good thing.
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Is human consciousness creating reality?

Is the physical universe independent from us, or is it created by our minds, as suggested by scientist Robert Lanza?

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  • A new study claims networks of observers are responsible for determining physical reality.
  • The scientists propose that observers generate the structures of time and space.
  • The paper could help yield insights into the God Equation, which attempts to unify quantum mechanics and general relativity.
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Mystery of the gigantic Oort cloud from deep space explained

Astronomers possibly solve the mystery of how the enormous Oort cloud, with over 100 billion comet-like objects, was formed.

Credit: Pablo Carlos Budassi via Wikimedia, licensed under CC BY-SA 4.0
  • The Oort cloud is a gigantic "cloud" at the edge of the solar system, about 3,000 times the distance between the Earth and the Sun.
  • Astronomers used computer simulations to reconstruct the first 100 million years of the Oort cloud's existence.
  • The Oort cloud may consist of the "leftovers" from the solar system's formation
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Physics’ greatest mystery: Michio Kaku explains the God Equation

Can one equation unite all of physics?

  • "It's no exaggeration to say that the greatest minds of the entire human race have made proposals for this grand final theory of everything," says theoretical physicist Michio Kaku.
  • This theory, also known as the God Equation, would unify all the basic concepts of physics into one. According to Kaku, the best, most "mathematically consistent" candidate so far is string theory, but there are objections.
  • "The biggest objection is you can't test it," Kaku explains, "but we're getting closer and closer."
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Is the universe infinite?

Determining if the universe is infinite pushes the limits of our knowledge.

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  • The size and shape of the universe has yet to be resolved.
  • The size of the universe is linked to understanding its shape and the limits of our observations.
  • New studies and going deeper into space will help us answer the question: "Is the universe infinite?"
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