Facilities

• X-ray lasersOperatingEuropean XFELWhere I workSchenefeld and Hamburg, GermanyThe world's largest X-ray laser, whose megahertz pulse trains called for purpose-built detectors.

  Next User operation; facility upgrade in preparation

• X-ray lasersOperatingFERMIBasovizza (Trieste), ItalyThe first seeded free-electron laser for users, now in the middle of its FERMI 2.0 upgrade.

  Next FERMI 2.0 — schedule and funding not announced

• X-ray lasersOperatingFLASHHamburg, GermanyThe first soft X-ray laser on a superconducting accelerator and the technology prototype for European XFEL.

  Next ≈ Dec 2026 – Jan 2027 first community experiments on the seeded FLASH1

• X-ray lasersUpgradeLCLS-IISLAC, Menlo Park, USAThe first hard X-ray laser, now upgrading its superconducting accelerator to higher energy.

  Next early 2027 — superconducting linac restarts; 2027-10 — first light of LCLS-II-HE (plan)

• X-ray lasersOperatingPAL-XFELPohang, Republic of KoreaKorea's X-ray laser, now funding a second hard X-ray line.

  Next 2026 funding for the second hard X-ray line HX2 has started; no start date announced

• X-ray lasersOperatingSACLAHarima (Hyogo Prefecture), JapanJapan's compact hard X-ray laser, the second in the world after LCLS.

  Next ≈ Oct 2027 neighbouring SPring-8 shuts down for about a year (SPring-8-II); SACLA keeps running

• X-ray lasersCommissioningSHINEZhangjiang, Shanghai, ChinaThe third superconducting X-ray laser in the world, now in commissioning.

  Next 2026–2027 first lasing (~200 eV, FEL-II line); end of 2027 — project completion

• X-ray lasersOperatingSwissFELVilligen, SwitzerlandPSI's compact X-ray laser, planning full coherence across hard and soft X-rays with SwissFELplus.

  Next 2029–2032 SwissFELplus upgrade: seeding in the hard and soft X-ray ranges, preparation of a new line (plan)

• SynchrotronsOperatingALS-UBerkeley (California), USABerkeley's soft X-ray synchrotron, whose upgrade dark time has slipped twice.

  Next Oct 2027 not before: ALS-U "dark time" begins (about 22 months)

• SynchrotronsOperatingAPS-UArgonne (Illinois), USAArgonne's synchrotron, rebuilt as what the laboratory calls the brightest in the world.

  Next 2026–2027 beamlines return to science after the upgrade

• SynchrotronsOperatingDiamond-IIHarwell (Oxfordshire), United KingdomThe UK's national synchrotron, heading for an 18-month dark period to become Diamond-II.

  Next Dec 2027 Diamond-II "dark period" begins (until 2029-06)

• SynchrotronsUpgradeElettra 2.0Basovizza (Trieste), ItalyTrieste's synchrotron, being rebuilt as a fourth-generation light source.

  Next Jan 2027 commissioning of the new ring with beam begins

• SynchrotronsOperatingESRF-EBSGrenoble, FranceThe first high-energy fourth-generation synchrotron, the model for the upgrades that followed.

  Next Feb 2027 (end) ID24-ED leaves the user programme (budget cut of €5 million a year)

• SynchrotronsCommissioningHEPSHuairou, Beijing, ChinaBeijing's new high-energy fourth-generation synchrotron, in trial operation with users.

  Next ≈ Dec 2026 national acceptance and official start of operation (planned "within 2026")

• SynchrotronsOperatingMAX IVLund, SwedenThe first large multi-bend achromat ring, which set the course for every fourth-generation source.

  Next Soft X-ray laser SXL — conceptual design ready, no decision to build

• SynchrotronsOperatingPETRA III/IVHamburg, GermanyHamburg's large synchrotron, waiting for a funding decision on its fourth-generation successor.

  Next 2026–2027 BMFTR decision on funding PETRA IV (expected)

• SynchrotronsOperatingSLS 2.0Villigen, SwitzerlandPSI's synchrotron, back after its upgrade to a fourth-generation source.

  Next 2026 (autumn) most beamlines open to users (PSI plan, not confirmed)

• SynchrotronsOperatingSOLEIL IISaint-Aubin (Paris-Saclay plateau), FranceFrance's synchrotron, preparing to shut down in 2028 for its ultra-low-emittance successor.

  Next Oct 2028 SOLEIL shuts down; SOLEIL II "dark period" (about two years including commissioning)

• SynchrotronsOperatingSPring-8-IIHarima (Hyogo Prefecture), JapanJapan's large synchrotron, preparing a one-year shutdown to become a fourth-generation source.

  Next ≈ Oct 2027 SPring-8 stops for about a year to install SPring-8-II (second half of Japanese fiscal year 2027)

• Gravitational wavesPlannedEinstein TelescopeCandidate sites: Meuse–Rhine (Belgium, Netherlands, Germany), Sardinia (Italy), Lusatia (Germany)Europe's planned underground gravitational-wave observatory; the site decision is coming.

  Next end of 2026 — site bid books due; 2027 — site selection

• Gravitational wavesUpgradeLVKHanford and Livingston (USA), Cascina (Italy), Kamioka (Japan)The gravitational-wave network, between observing runs and about to start a six-month run.

  Next late Oct to mid-Nov 2026 — six-month IR1 run starts (plan)

• NeutrinosUnder constructionDUNEFermilab (Illinois) to SURF (South Dakota), USAA 1,300 km neutrino experiment under construction in a former gold mine.

  Next ≈ 2030 data taking begins (after delays)

• NeutrinosUnder constructionHyper-KKamioka, JapanSuper-Kamiokande's successor, eight times larger, racing DUNE to CP violation in neutrinos.

  Next 2027 photomultiplier installation; 2028 — first data (plan)

• NeutrinosOperatingIceCubeSouth Pole, AntarcticaA cubic kilometre of Antarctic ice that discovered astrophysical neutrinos; Nobel Prize 2026.

  Next First IceCube Upgrade data; Gen2 in planning

• NeutrinosOperatingJUNOJiangmen, Guangdong, ChinaThe largest liquid-scintillator neutrino detector, aiming at the neutrino mass ordering.

  Next Data taking; mass ordering at ≥3σ is several years away

• NeutrinosData taking endedKATRINKIT, Karlsruhe, GermanyWeighing the neutrino directly; data taking is finished and the final analysis is under way.

  Next Final result from the full data set (expected)

• NeutrinosUnder constructionKM3NeTMediterranean Sea, off Sicily (ARCA) and off Toulon (ORCA)Deep-sea neutrino telescopes, still being built, that caught the most energetic neutrino ever seen.

  Next ARCA and ORCA construction continues; new analyses of KM3-230213A

• TelescopesOperatingRubinCerro Pachón, ChileStarted its ten-year survey of the southern sky in June 2026.

  Next Data previews and first LSST science releases

• TelescopesUnder constructionSKAWestern Australia (SKA-Low) and the Karoo, South Africa (SKA-Mid); headquarters at Jodrell Bank, UKThe largest radio observatory under construction, on two continents.

  Next First SKA-Mid image (expected)

• NeutronsCommissioningESSLund, Sweden (data centre in Copenhagen)The world's most powerful pulsed neutron source, preparing for its first neutrons.

  Next 27 Jan 2027 first beam on target, first neutrons (plan)

• Particle physicsLong shutdownLHCCERN, Geneva (Switzerland and France)The largest collider, in a long shutdown to become the High-Luminosity LHC.

  Next Jun 2030 HL-LHC starts (Run 4)

No facility matches.