Deep Underground Neutrino Experiment Begins

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• Science09/14/2026@BuildDesk

  DUNE Far Detector Caverns Excavation Completed

  Sanford Underground Research Facility, Lead, Lawrence County, South Dakota, United StatesFermilab

  

  Starts 08/15/2024CONFIRMED90% CONFIDENCE2.1 years agoHappened as dated, per the source^[1]: "completion of excavation work for the Long-Baseline Neutrino Facility".

  Crews finished carving three enormous caverns a mile beneath a former South Dakota gold mine to house the Deep Underground Neutrino Experiment.

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• Science09/15/2026@BuildDesk

  Hyper-Kamiokande Neutrino Observatory Cavern Completed

  Kamioka, Hida, Gifu Prefecture, Japan

  

  Starts 07/31/2025CONFIRMED89% CONFIDENCE1.1 years agoHappened as dated, per the source^[1]: "the University of Tokyo completed excavation of the colossal cavern that will house the main detector volume of Hyper-Kamiokande" on July 31, 2025.

  Crews finished excavating the huge cavern in a Japanese mountain that will house the Hyper-Kamiokande neutrino observatory, a step toward the detector's planned start of observations.

  $600M

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• Science09/15/2026@BuildDesk

  KONE Reopens Its Deep-Mine Elevator Test Lab in Tytyri, Finland

  Tytyri, Lohja, FinlandKONE Corporation

  

  Starts 03/29/2017CONFIRMED90% CONFIDENCE9.5 years agoHappened as dated, per the source^[1]: "has unveiled its renewed high-rise elevator testing facility in Tytyri, Finland, after extensive renovations."

  KONE finished renovating its underground elevator testing facility inside a Finnish limestone mine, extending its shafts to the world's deepest for free-fall and speed testing.

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• Architecture09/14/2026@BuildDesk

  Parliament Hill's Centre Block excavation begins

  Parliament Hill, Ottawa, Ontario, Canada

  

  Starts 07/30/2020CONFIRMED90% CONFIDENCE6.1 years agoHappened as dated, per the source^[1]: "controlled explosives use and rock removal activities" began in front of Centre Block on Parliament Hill on July 30, 2020.

  Crews began blasting a 23-metre-deep pit in front of Canada's Centre Block to make way for a new underground Welcome Centre and earthquake base isolation system.

  C$5B

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• Science09/22/2026@ScienceDesk

  LIGO, Virgo and KAGRA Begin the IR1 Observing Run

  NSF LIGO - Hanford, 127124, North Route 10, Richland, Benton County, Washington, 99354, United StatesLIGO

  

  Starts 11/15/2026ESTIMATED68% CONFIDENCEin 53 daysThe collaborations' own observing plan, last updated 3 September 2026, gives only a window - a six-month run "beginning early- to mid-November of 2026" - and says the next update is due 15 October 2026 or sooner. With no day named, the pin takes the close of the stated window rather than its start, so it is not early; it moves when the collaborations name the day.^[1]

  The gravitational-wave detectors start a six-month intermediate observing run before the fifth observing run. Both LIGO detectors take part, Virgo joins despite possible maintenance interruptions, and KAGRA joins as it becomes available.

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• Science09/21/2026@ScienceDesk

  ITER Starts Research Operations

  ITER OrganizationITER, Saint-Paul-lez-Durance, France

  Starts 12/31/2034ESTIMATED68% CONFIDENCEin 8.3 yearsITER's^[1] updated 2024 baseline gives 2034 for the start of research activities. Only the year is stated, so the pin takes its last day.

  ITER's 2024 baseline puts the start of research operations in 2034, opening a period of hydrogen and deuterium plasma experiments at the fusion reactor in southern France.

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• Science09/14/2026@BuildDesk

  Electron-Ion Collider Construction

  Brookhaven National Laboratory, Upton, New York, USABrookhaven National Laboratory

  

  Starts 12/31/2033ESTIMATED67% CONFIDENCEin 7.3 yearsA target, per the source^[1]: the collider is "expected to become operational in the early to mid-2030s".

  Brookhaven National Laboratory is building the Electron-Ion Collider inside its existing RHIC tunnel, a $1.7-2.8BN US physics megaproject to study the glue holding matter together.

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• Science09/22/2026@ScienceDesk

  LIGO Announces the First Detection of Gravitational Waves

  National Press Club, 529, 14th Street Northwest, Downtown, Ward 2, Washington, District of Columbia, 20005, United StatesLIGO

  

  Starts 02/11/2016CONFIRMED88% CONFIDENCE10.6 years agoWikipedia^[2] dates both the observation and the announcement: "The first direct observation of gravitational waves was made on 14 September 2015 and was announced by the LIGO^[3] and Virgo collaborations on 11 February 2016." LIGO's own news release of that day carries the announcement, made at 10:30 a.m. Eastern at the National Press Club, where this pin is placed.

  At a press conference at the National Press Club in Washington, the LIGO and Virgo collaborations announce GW150914, a signal from the merger of two black holes recorded by both LIGO detectors on 14 September 2015 - the first direct observation of gravitational waves.

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• Science09/22/2026@ScienceDesk

  CERN Announces a Particle Consistent With the Higgs Boson

  CERN, 1, Route de Meyrin, Meyrin, Geneva, 1211, SwitzerlandCERN

  

  Starts 07/04/2012CONFIRMED88% CONFIDENCE14.2 years agoCERN's own press release is dated the day of the seminar, and Wikipedia's^[2] Higgs boson article repeats it throughout: "On 4 July 2012, the discovery of a new particle with a mass between 125 and 127 GeV/c2 was announced" and "On 4 July 2012 both of the CERN experiments announced they had independently made the same discovery".

  At a seminar at CERN, the ATLAS and CMS experiments each report a new boson at around 125-126 GeV at five sigma, independently and from the same data-taking runs. It is the last unverified piece of the Standard Model.

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• Transport09/15/2026@BuildDesk

  SBB Opens the Löwenstrasse Underground Station at Zürich Hauptbahnhof

  Zürich Hauptbahnhof, Bahnhofplatz, 8001 Zürich, SwitzerlandSBB

  

  Starts 06/15/2014CONFIRMED87% CONFIDENCE12.3 years agoPer Wikipedia's^[2] Weinberg Tunnel article: "the route was changed to its current state" with the tunnel's opening and a simultaneous timetable change on 15 June 2014, after public platforms opened a day earlier.

  Swiss Federal Railways brought the new four-track Löwenstrasse station into service 16 metres beneath Zürich's main station, the first stage of the Durchmesserlinie cross-city link.

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• AI09/23/2026@TechDesk

  Lux AI Supercomputer Arrives at Oak Ridge National Laboratory

  Oak Ridge National Laboratory, Third Street, Oak Ridge, Roane County, Tennessee, United StatesHewlett Packard Enterprise·…

  

  Starts 06/17/2026CONFIRMED85% CONFIDENCE98 days agoThe Lux page shows the photo 'The Lux supercomputing system arrives at ORNL^[1][3][4][6]' without a date; that photo's own OLCF page dates it: 'Lux supercomputing system on Wednesday, June 17, 2026 in the Oak Ridge Leadership Computing Facility. The delivery marks the beginning of the system's installation and deployment.' No time given, so all day.

  DOE's Lux AI cluster, built by HPE with more than 4,000 AMD MI355X GPUs, was delivered to ORNL's leadership computing facility, starting installation of the first dedicated AI system for the Genesis Mission.

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• Science09/14/2026@BuildDesk

  European Spallation Source Aims for First Neutrons

  European Spallation Source, Brunnshög, Lund, SwedenEuropean Spallation Source

  

  Starts 02/28/2027ESTIMATED69% CONFIDENCEin 158 daysGiven as scheduled, per the source^[1]: "planned for early 2027".

  A 13-nation collaboration near Lund, Sweden is finishing a roughly €3 billion (about $3.5 billion) neutron research facility built around one of the world's most powerful linear particle accelerators.

  $3B

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