Physicists Just Achieved a New Smallest Measurement of a Ghost Particle’s Mass0
- From Around the Web, Science & Technology
- March 2, 2022
Decaying isotopes of hydrogen have just given us the smallest measurement yet of the mass of a neutrino.
Decaying isotopes of hydrogen have just given us the smallest measurement yet of the mass of a neutrino.
Why so late, little neutrino?
When physicists detected signals of high-energy neutrinos coming from a rather unlikely direction in the cosmos, they naturally went looking for a powerful source that might explain it.
Four billion years ago, an immense galaxy with a black hole at its heart spewed forth a jet of particles at nearly the speed of light.
Astronomers have traced a high-energy neutrino to its cosmic source for the first time ever, solving a century-old mystery in the process.
Trillions of neutrinos, or ghost particles, are passing through us every second. While scientists know this fact, they don’t know what role neutrinos play in the universe because they are devilishly hard to measure.