Disgraced Theranos founder Elizabeth Holmes has begun her 11-year prison sentence after being convicted of four counts of fraud. The BBC reports: She will serve her term in a minimum-security prison in Texas. Holmes reported to the federal facility in Bryan, Texas, which holds between 500 and 700 inmates at any given time, on Tuesday. It is about 100 miles (160km) north of Houston, her hometown. Her arrival at the facility was confirmed by the Federal Bureau of Prisons, which declined to give any more details about her confinement, citing privacy concerns.

There, the woman once billed as the world's youngest self-made billionaire might work alongside other inmates for between 12 cents (10p) and $1.15 (93p) an hour - much of which will go towards her court-mandated restitution payments. [...] The Texas prison camp where Holmes will serve time is a sprawling 37-acre facility. Most inmates there have been convicted of non-violent crimes, low-level drug dealing or white-collar offenses. According to the facility's handbook, life largely revolves around work and extracurricular activities that include foreign language, computer literacy or business courses.

Holmes had fought to stay out of prison while her legal appeal works its way through the courts. She argued a delay would allow her to raise "substantial questions" about the case that could warrant a new trial. Her defense team also argued that she should remain free to care for her children, one who is nearly two and the other three months old. The Wall Street Journal reported the prison has facilities where inmates can host gatherings and where children can play. Holmes and other mothers are allowed to hold their children in their lap and breastfeed their infants, according to official Bureau of Prison guidelines.

CERN: The discovery of the Higgs boson at CERN's Large Hadron Collider (LHC) in 2012 marked a significant milestone in particle physics. Since then, the ATLAS and CMS collaborations have been diligently investigating the properties of this unique particle and searching to establish the different ways in which it is produced and decays into other particles. At the Large Hadron Collider Physics (LHCP) conference last week, ATLAS and CMS report how they teamed up to find the first evidence of the rare process in which the Higgs boson decays into a Z boson, the electrically neutral carrier of the weak force, and a photon, the carrier of the electromagnetic force. This Higgs boson decay could provide indirect evidence of the existence of particles beyond those predicted by the Standard Model of particle physics.

The decay of the Higgs boson into a Z boson and a photon is similar to that of a decay into two photons. In these processes, the Higgs boson does not decay directly into these pairs of particles. Instead, the decays proceed via an intermediate "loop" of "virtual" particles that pop in and out of existence and cannot be directly detected. These virtual particles could include new, as yet undiscovered particles that interact with the Higgs boson. The Standard Model predicts that, if the Higgs boson has a mass of around 125 billion electronvolts, approximately 0.15% of Higgs bosons will decay into a Z boson and a photon. But some theories that extend the Standard Model predict a different decay rate. Measuring the decay rate therefore provides valuable insights into both physics beyond the Standard Model and the nature of the Higgs boson.

A German startup has secured initial funding to develop a revolutionary fusion energy machine that it hopes can provide a future source of abundant, emissions-free power. From a report: Proxima Fusion, incorporated in January, aims to build a complex device known as a stellarator and is the latest company to join the emerging fusion industry's effort to generate electricity by fusing atoms. Although the amount of funding is small at only $7.5mn, it is significant as Proxima is the first fusion company to spin out of Germany's revered Max Planck Institute for Plasma Physics. The institute is the home of the world's most advanced existing stellarator in Greifswald, in eastern Germany, built by government-funded scientists over the past 27 years using supercomputers and advanced engineering.

Little known outside the world of plasma physics, a stellarator is an alternative to the better known tokamak device, pioneered by Soviet scientists in the 1950s. Both use huge magnets to suspend a floating mass of hydrogen plasma as it is heated to extreme temperatures so the atomic nuclei fuse releasing energy. Until recently nearly all funding of so-called magnetic confinement fusion has been channelled into tokamaks such as the Joint European Torus in Oxford, England, or the Sparc device being built by the Bill Gates-backed Commonwealth Fusion Systems in Massachusetts.

China sent three astronauts to its now fully operational space station as part of crew rotation on Tuesday in the fifth manned mission to the Chinese space outpost since 2021, state media reported. From a report: The spacecraft, Shenzhou-16, or "Divine Vessel," and its three passengers lifted off atop a Long March-2F rocket from the Jiuquan Satellite Launch Centre in the Gobi Desert in northwest China at 9:31 a.m. The astronauts on Shenzhou-16 will replace the three-member crew of the Shenzhou-15, who arrived at the space station late in November. The station, comprising three modules, was completed at the end of last year after 11 crewed and uncrewed missions since April 2021, beginning with the launch of the first and biggest module -- the station's main living quarters. China has already announced plans to expand its permanently inhabited space outpost, with the next module slated to dock with the current T-shaped space station to create a cross-shaped structure.