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dark matter

At Quanta: Are we looking at the end of physics?

Ah yes, the problem of dead-endedness that Sabine Hossenfelder often writes about. As does Columbia mathematician Peter Woit, on the subject of string theory. But surely much of the nonsense around string theory and the multiverse is in part due to a practical failure—the inability to find even a single particle of dark matter or similar evidence for dark energy. Read More ›

Rob Sheldon dishes on dark matter and dark energy

Rob Sheldon: My takeaway is that dark energy is "pathological science," using the words of Irving Langmuir to describe N-rays or polywater. It is science at the edge of messy data, finding what one is looking for by using poor statistical methods. It is precisely what astronomers are trained NOT to do, and therefore this whole Nobel Prize thing is a corruption of what had been a relatively unstained field. Read More ›

Sabine Hossenfelder: Are dark matter and dark energy scientific?

Hossenfelder: “So, what’s the scientist to do when they are faced with such a discrepancy between theory and observation? They look for new regularities in the observation and try to find a simple way to explain them.” Okay but the question of whether the terms “dark matter” and “dark energy” correspond to anything that actually exists could be a different one. Read More ›

Could information be—at long last—the missing “dark matter”?

One physicist now suggests that this “fifth state” of matter (the other four non-dark states are solid, liquid, gas, and plasma) might be information. But then information must be a physical thing… Read More ›

New Scientist: Dark matter’s no-show casts doubt on Big Bang; Rob Sheldon replies

Sheldon: The recent publication of the Italians+Silk paper has now voiced the unspeakable: there is something wrong with the Lambda-CDM Big Bang model, and by inference, the 2011 Nobel Prize. Neither "dark matter" nor "dark energy" seem to exist in a form that makes the model work. Read More ›

Hossenfelder, did you know that, for some, the search for dark matter is an act of faith?

At Nautilus: “My sense,” I say to Christopher, “is that the search for dark matter has produced an elaborate, delicate edifice of presuppositions, and a network of worship sites, also known as laboratories, all dedicated to the search for an invisible universal entity which refuses to reveal itself. It seems to resemble what we call religion rather more than what we call science.” Read More ›

Hossenfelder: Could the problem with dark matter come down to using wrong equations?

Sabine Hossenfelder: Given how much brain-power physicists have spent on trying to figure out what dark matter and dark energy is, I think it would be a good idea to definitely settle the question whether it is anything at all. At the very least, I would sleep better. Read More ›