And what might we learn as we collect new, never-before-seen data? If you took one of history’s top scientists from 100 years ago and dropped them into today’s world, what […]
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Is it conserved? Destroyed? Radiated away? 40+ years on, we still don’t have answers. This article was contributed by Sabine Hossenfelder. Sabine is a theoretical physicist specialized in quantum gravity and […]
And the science of how we can find it. This article is written by Sabine Hossenfelder. Sabine is a theoretical physicist specialized in quantum gravity and high energy physics. She also […]
In Munich last week, physicists and philosophers debate what makes for a scientific theory. Surprisingly, no one agrees. This piece was written by Sabine Hossenfelder. Sabine is a theoretical physicist specialized […]
And what it means if we don’t see gravitational waves from inflation in the next 5–10 years. “The paradigm of physics — with its interplay of data, theory and prediction — is the most powerful […]
Traveling to the future is possible, but the “back” part runs into trouble. Mr. Strickland: “I noticed your band is on the roster for the dance auditions after school today. […]
There were two periods of exponential expansion in the Universe: one today and one long ago. Are they related? “What is wild cannot be bought or sold, borrowed or copied. […]
We know that Einstein’s general relativity is superior to Newton’s gravity, but where did Newton go wrong? “To me there has never been a higher source of earthly honor or […]
If String Theory has nothing to do with reality, what are our options? “I just think too many nice things have happened in string theory for it to be all […]
A “speculative” theory no more; it’s had four of them confirmed. “Scientific ideas should be simple, explanatory, predictive. The inflationary multiverse as currently understood appears to have none of those […]
What it means if there’s no life anywhere else in the Universe, and what we know so far. “Men occasionally stumble over the truth, but most of them pick themselves […]
With all the matter-and-energy so close together and so dense at the moment of the Big Bang, why didn’t it recollapse? Image credit: Mark A. Garlick / University of Warwick. […]
If stars, planets, and biological processes are so common in the Universe, then where is everyone? “If the Universe Is Teeming with Aliens… Where Is Everybody?”–Stephen Webb As egocentric as […]