Analysis: Science & Technology — 10 November 2026
LHCb finds first evidence of Bd meson decaying into two muons
CERN’s LHCb experiment has reported evidence that the Bd meson, a particle made of a beauty quark and a down antiquark, can decay into a muon–antimuon pair. The process is predicted to occur only about once in 10 billion beauty-particle decays. With data taken in 2024 and 2025 after a detector upgrade, the team reached 3.0 standard deviations, rising to 3.2 when combined with 2011–2018 data. That meets the usual bar for “evidence,” not the 5-sigma threshold for discovery.
A related Bs decay was observed in 2015 by LHCb and CMS; later analyses through 2018 could not confirm earlier hints of the rarer Bd channel, expected about 30 times less often. After the upgrade, LHCb collected data at five times its previous rate, with better particle identification and machine-learning background rejection. In these so-called golden channels, virtual particles too heavy to produce at the LHC can still shift the decay rate.
Fact: the measured rate agrees with the Standard Model so far. Analysis: that agreement tightens constraints rather than revealing a crack in the theory. Five sigma is still required for observation; the High-Luminosity LHC from 2030 and a later LHCb upgrade could raise the data rate another tenfold. Whether heavier states exist at zeptometer scales remains an open experimental question.
Sources: ScienceDaily.
Warsaw-led team observes a photonic supersolid at room temperature
Researchers from the University of Warsaw, Poland’s Military University of Technology, IBM Research Zurich and CNRS report in Science Advances a supersolid formed from exciton polaritons at room temperature. The state combines crystal-like density order with superfluid flow. They used a liquid-crystal optical microcavity coated with the organic semiconductor MeLPPP. The cavity can operate near 60°C.
Supersolidity was proposed in the 1960s and first seen in ultracold atomic condensates in 2017, which required near-absolute-zero cooling. Polaritons are short-lived light–matter quasiparticles that can still form a condensate. Evidence included regularly spaced bright fringes that jumped among equivalent positions after each laser pulse—spontaneous symmetry breaking—plus a persistent spin helix in the light’s polarization.
Samples lasted only hours because the organic layer reacted with the liquid crystal, so each run needed a new device. Photonic computing and sensors are stated as possible uses, not demonstrated results. Analysis: room-temperature operation and electrical tunability remove a practical barrier, but picosecond lifetimes and chemical instability still limit engineering. Whether the same order survives in a durable, electrically driven device is unresolved.
Sources: ScienceDaily.
Caltech ASTRA robot assembles a truss bay in Earth orbit
Caltech’s ASTRA robot, flown on Momentus Vigoride 7 after a 30 March 2026 SpaceX Transporter-16 launch, assembled a third truss bay in low Earth orbit. Two bays launched pre-built; a robotic arm then joined composite tubes and aluminum joints from dispensers. Researchers describe it as the first autonomous construction of a structure in space. The DARPA NOM4D test was designed to build a 1.4-metre reflector antenna.
Rocket fairings limit payload size, so large telescopes and antennas have been folded or assembled by astronauts. ASTRA occupies about one cubic metre and repeats a modular sequence: assemble a bay, attach perforated Kapton film, push it out. Operators sent commands during seven or eight 15-minute passes per day and used a laboratory spare to debug faults. The mission is due to end in December 2026.
The full 11-bay antenna will not be finished; time and on-orbit surprises limited the work to one new bay. “Autonomous” still meant human troubleshooting from Earth. Analysis: piece-by-piece orbital assembly is now shown to be feasible, but scaling to the hundreds of metres DARPA cites needs far more reliability and less ground intervention. Unlike Canadarm2, which moved finished modules, ASTRA’s claim is construction from parts.
Sources: ScienceDaily New Atlas.