Teenager’s Bombing and Mass Shooting Plot at a Mall Is Foiled, F.B.I. Says The plot, described by one official as being “as serious as it gets,” involved a plan to shoot moviegoers at a ...

More information: Measurement of the Z-boson mass, arXiv (2025). DOI: 10.48550/arxiv.2505.15582 Journal information: Physical Review Letters , arXiv ...

Fewer than half of Mass. residents approve of Gov. Maura Healey, new poll shows The poll showed that 49 percent of residents approve of Healey’s performance, while 45 percent don’t.

Bishop Martin in his statement said the measure was meant to bring the Charlotte diocese in line with Pope Francis' 2021 motu proprio Traditionis Custodes, which greatly restricted the Latin Mass ...

Pope Leo XIV, the first American pope, presided over his inaugural Mass in St. Peter’s Square on Sunday in front of a crowd of tens of thousands. World leaders including Vice President JD Vance ...

On Sunday morning, May 18, a Mass for the beginning of the pontificate of Pope Leo XIV will take place in St. Peter's Square at the Vatican. Although the Mass is no longer described as an ...

The KATRIN experiment began operations in 2019. It seeks to constrain the neutrino’s mass by looking at the energy spectrum of electrons and electron antineutrinos emitted by decaying tritium, a ...

With the current data from the KATRIN experiment, an upper limit of 0.45 electron volt/c 2 (corresponding to 8 x 10 -37 kilograms) could be derived for the neutrino mass.

For context, that’s less than one-millionth the mass of an electron, which clocks in at a comparatively gargantuan 511,000 eV. So, yeah—neutrinos are ridiculously lightweight.

The KATRIN experiment in Germany nearly halved the maximum possible mass for neutrinos, setting it at 0.45 electron volts.

Each electron carries one unit of negative charge (1.602 x 10-19 coulomb) and has a mass of just about 1/1836th of a proton. Electrons are found both not permanently attached to atoms and within ...