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Standard Model
42mins
Sabine Hossenfelder talks about Albert Einstein, dead grandmothers, the physics of aging, and more in this full interview with Big Think.
We can reasonably say that we understand the history of the Universe within one-trillionth of a second after the Big Bang. That's not good enough.
The standard model of cosmology has a big new problem: Some galaxies seem to be too old.
Cosmologists are largely still in the dark about the forces that drive the Universe.
It may be time for a cosmological paradigm shift.
Leading a scientific revolution is easy: you just have to succeed where the current theory fails while equaling its successes. Good luck!
With a bigger, better, and more sensitive detector, the XENON collaboration joins LZ and PANDA-X in constraining WIMP dark matter.
If there are three neutrino species, all with different masses, then how is energy conserved when they oscillate from one flavor to another?
The zero-point energy of empty space is not zero. Even with all the physics we know, we have no idea how to calculate what it ought to be.
5mins
Is science close to explaining everything about our Universe? Physicist Sabine Hossenfelder reacts.
If you're a massless particle, you must always move at light speed. If you have mass, you must go slower. So why aren't any neutrinos slow?
Protons and neutrons are held together by the strong force: with 3 colors and 3 anticolors. So why are there only 8 gluons, and not 9?
Recent measurements of subatomic particles don't match predictions stemming from the Standard Model.
There might be a hard limit to our knowledge of the Universe.
5mins
Do humans have souls, or are we just particles? Physicist Sabine Hossenfelder explains.
The difference between predictions and observations of the magnetic properties of muons suggests a mystery for the Standard Model.
Since dark matter eludes detection, the mission will target sources of light that are sensitive to it.
For years and over three separate experiments, "lepton universality" appeared to violate the Standard Model. LHCb at last proved otherwise.
Every proton contains three quarks: two up and one down. But charm quarks, heavier than the proton itself, have been found inside. How?
In 1974, Stephen Hawking showed that even black holes don't live forever, but emit radiation and eventually evaporate. Here's how.
Before we discovered gravitational waves, multi-messenger astronomy got its start with light and particles arriving from the same event.
From the tiniest subatomic scales to the grandest cosmic ones, solving any of these puzzles could unlock our understanding of the Universe.
At a fundamental level, only a few particles and forces govern all of reality. How do their combinations create human consciousness?
Magnetic monopoles began as a mere theoretical curiosity. They might hold the key to understanding so much more.
In all the Universe, only a few particles are eternally stable. The photon, the quantum of light, has an infinite lifetime. Or does it?
Scientists have found three new examples of a very exotic form of matter made of quarks. They can yield insights into the early Universe.
The neutrino is the most ghostly, rarely-interacting particle in all the Standard Model. How well can we truly make "beams" out of them?
The way to understand the earliest moments of creation is to recreate those conditions and study them. Why would we stop now?
On July 4, we celebrate the tenth anniversary of the discovery of the Higgs boson, the missing piece of the Standard Model of particle physics.
Giant particle accelerators aren't a waste of money. They are essential for understanding the Universe.