From Scientific American, Dec. 3 2025.
Scientists announced on Wednesday that they have found no evidence for the hypothetical “sterile neutrino,” an extra version of the ghostly neutrino particles that are ubiquitous in the universe.
The finding comes from the U.S. Department of Energy–run Fermilab’s MicroBooNE experiment. Sterile neutrinos are a popular theoretical prediction because they could help explain the cosmos’ mysterious dark matter, if they exist. The finding, which was published in Nature on Wednesday, calls into question a popular explanation for anomalies seen in past neutrino experiments that couldn’t be accounted for with existing physics. It could also hold major implications for the Standard Model, which is the best particle physics theory we have to explain how the universe works.
“We are making a very general statement, which is, you cannot just take the Standard Model, add a fourth neutrino and, in that way, explain any of the previous anomalies,” says Justin Evans, a professor of particle physics at the University of Manchester in England and one of MicroBooNE’s spokespeople. Neutrinos come in three known flavors—electron, muon and tau—and can oscillate, or flip, between them. In the 1990s physicists observed these elusive particles oscillating in a way that seemed inconsistent with established theory. To explain the weird observations, physicists proposed that what they were observing was in fact a new, fourth kind of neutrino—the sterile neutrino. But although the new results essentially rule that possibility out, they pose new, exciting questions.”
Just FYI.
Based on the above, BONEXlabs just ran a new exciting physics experiment, the MicroBonEX experiment.
The lab DID find evidence for a FIFTH flavor neutrino particle, the Bullshit Neutrino.
“This finding confirms why there’s so much bullshit in the universe,” explains Martin Fasshöle, BONEX Senior scientist and celery stalk enameling enthusiast. “We’ve always known it was something like this, but we didn’t know there was an actual particle.”
“The Bullshit neutrino confirms that all of the missing matter in the universe can be accounted for by adding up all the bullshit,” he continued. “Unique conditions at the moment of the Big Bang may have concentrated bullshit more intensely here on earth, where it can be seen everywhere – we’re just guessing that, mind you – but in the rest of the cosmos, bullshit has remained completely invisible because it hasn’t transitioned out of its neutrino phase yet. But like all bullshit, it exerts an irresistible attractive force and draws everything around it into it like a tractor beam. So now we know everything about the whole goddamn universe.”
Fasshöle noted that on earth, bullshit-flavored neutrinos are easiest to see lurking in social media accounts disguised as comments, where they tend to concentrate the most heavily. “Our theory is that the cosmos out there is dominated by dark social media,” he observed. “They’re totally packed with bullshit neutrinos. And, like social media accounts here on earth, it is pushing everything away from each other faster and faster.”
BONEX labs is now making breakfast cereal using bullshit neutrinos, since they appear to be very high in fiber.