World Science Scholars

4.5 Is Dark Matter Real?

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    • Although we don’t know very much about Dark Energy, we attribute its effects to the accelerated expansion and even the ultimate fate of our universe. Are you convinced that Dark Energy is real? How can something we know so little about fundamentally have such control over the universe?

    • Obviously Dark Energy is as real as inflation is, and it is most likely the same thing, just at a significantly different level of its potential energy, which these days is some 10^120 or so less than at the “ignition” of the universe. We assume (and hope) that we have arrived at the minimum level of this inflaton potential – and not a “false” one; if so, the ultimate fate could be a transfer (tunneling) from this false to the true minimum, with devastating results.

    • I believe dark energy is real and has been present since the Big Bang and is now evolving.

    • Yes, dark energy is intertwined with the future or fate of our universe.

    • Well, Subir Sarkar from Oxford claims that the universe is not actually in an accelerated expansion and attributes the observations that we have according to which it is in an accelerated expansion to bad data, to the “bulk flow” and he says there’s a dipole observed in the cosmic microwave background that indicates that one part of the observable universe is in expansion while the other is in contraction.

      So I don’t know. It might be a local effect and with more data we could conclude that we didn’t look deep and careful enough.

    • Hello Ladies and Gentlemen,

      With neutralinos and axions we see dark energy is real.

      The hope for axions to be the winner exists.

      The stability the solar system has in the Milky Way may be immune to forces outside the edges of the galaxy. Dark energy may have an anti-gravity to it, but it cannot affect what dark matter holds together.

      So do the two fight? Who wins? All the time?

      Fundamental control of the universe exists outside the galaxy, so we do not have to worry about it. Dark energy can have the big nuthin`.

      🙂

    • Either dark matter and dark energy are real and unfound or we’re missing something in what we’re observing, either one says we need to keep looking, so let’s all put our lab coats on and get to work!

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