Rubin Observatory Delivers Its First LSST Data Release · Chronopin

Rubin Observatory Delivers Its First LSST Data Release · Chronopin

Science09/22/2026@ScienceDesk
Gaia Data Release 4 Opens to the World
European Space Astronomy Centre, Camino Bajo del Castillo, Sexmo de Casarrubios, El Castillo, Comunidad de Ciudad y Tierra de Segovia, Villanueva de la Cañada, Community of Madrid, 28692, SpainEuropean Space Agency
Starts 12/02/2026SCHEDULED 80% CONFIDENCEin 70 daysESA's^[1][2] own Gaia Data Release 4 page states the date as a commitment - "Coming up: 2 December 2026" - and says the release-day stories summarising the data products will be published on the day itself. A release date set by the agency that owns the archive is scheduled, not estimated, though data releases have slipped before.
ESA publishes the fourth Gaia data release, the mission's first principal release, covering the first 5.5 years of observations. It adds astrometric time series, an exoplanet list and the software to work with them.
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Science09/22/2026@ScienceDesk
Euclid Releases the Foundation of Its First Data Release
European Space Astronomy Centre, Camino Bajo del Castillo, Sexmo de Casarrubios, El Castillo, Comunidad de Ciudad y Tierra de Segovia, Villanueva de la Cañada, Community of Madrid, 28692, SpainEuropean Space Agency
Starts 11/30/2026ESTIMATED 72% CONFIDENCEin 68 daysESA's^[1][2] DR1 timeline page, updated 15 June 2026, gives DR1-Foundation as "November 2026" and the complete DR1 as mid-2027, and says exact release dates will be provided later. A month with no day is estimated at that month's last day, which puts this pin on 30 November 2026; it moves when ESA names the day.
The first stage of Euclid Data Release 1 puts out all raw data and calibrated images, catalogues and spectra over about 1,900 square degrees of sky. The higher-level products for galaxy clustering and weak lensing follow in mid-2027.
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Science09/21/2026@ScienceDesk
SKA-Low Opens Science Verification at AA2
SKA ObservatoryMurchison Radio-astronomy Observatory, Western Australia, Australia
Starts 06/30/2027ESTIMATED 63% CONFIDENCEin 280 daysSKAO's^[1] own science-operations timeline puts SKA-Low's AA2 Science Verification at 2027, and the observatory has said verification is offered with AA2 in the first half of that year; with no day announced the pin takes the end of the stated window.
The SKA's low-frequency telescope in Western Australia reaches its AA2 array assembly in 2027, the stage at which science verification observations begin.
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AI09/19/2026@TechDesk
GPT-4o Update Extends Knowledge to June 2024
OpenAI
Starts 01/29/2025 CONFIRMED 95% CONFIDENCE1.7 years agoOpenAI's^[1] own model release notes date this entry January 29, 2025
OpenAI updates GPT-4o in ChatGPT, moving its training data cutoff from November 2023 to June 2024 and improving its understanding of images.
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Astronomy09/14/2026@BuildDesk
Extremely Large Telescope Targets 2029 First Light
Cerro Armazones, Antofagasta Region, ChileEuropean Southern Observatory
Starts 03/31/2029DELAYED4.5 years late56% CONFIDENCEin 2.5 yearsDate has moved, per the source^[1]: "telescope first light" is "now planned for March 2029," after "several of the telescope contracts suffered delays."
The European Southern Observatory's Extremely Large Telescope, being built atop a Chilean mountain by 16 partner nations, is now targeting first light in March 2029 after repeated delays.
€1B
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Science09/21/2026@ScienceDesk
SKA-Mid Opens Science Verification at AA2
SKA ObservatoryKaroo, Northern Cape, South Africa
Starts 12/31/2029ESTIMATED 70% CONFIDENCEin 3.3 yearsSKAO's^[1][2] own SKA-Mid science-operations timeline places AA2 and the start of Science Verification at 2029, with AA* following in 2031. Only the year is given, so the pin takes the last day of 2029.
The SKA's mid-frequency array in South Africa's Karoo reaches AA2 in 2029, two years after its Australian counterpart, opening science verification observations.
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AI09/19/2026@TechDesk
GPT-4.5 Released as a Research Preview
OpenAI
Starts 02/27/2025 CONFIRMED 87% CONFIDENCE1.6 years agoOpenAI's^[1] own model release notes date this entry February, 27, 2025
OpenAI releases a research preview of GPT-4.5, its largest and best model for chat, scaling up unsupervised learning rather than reasoning.
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AI09/19/2026@TechDesk
GPT-4o mini Released
OpenAI
Starts 07/18/2024 CONFIRMED 90% CONFIDENCE2.2 years agoOpenAI's^[1][2] own model release notes date this entry July 18, 2024
OpenAI introduces GPT-4o mini, its most capable and cost-efficient small model, surpassing GPT-3.5 Turbo on academic benchmarks.
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AI09/19/2026@TechDesk
GPT-5.1-Codex-Max Released
OpenAI
Starts 11/19/2025 CONFIRMED 90% CONFIDENCE308 days agoOpenAI's^[1][2][3] own model release notes date this entry November 19, 2025
OpenAI releases GPT-5.1-Codex-Max, a frontier agentic coding model for long-running, project-scale work in Codex.
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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 11/15/2026ESTIMATED 68% 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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AI09/23/2026@TechDesk
NVIDIA Vera Rubin NVL72 Debuts in MLPerf Inference v6.1
NVIDIA…NVIDIA Endeavor, 2788 San Tomas Expressway, Santa Clara, California 95051, United States
Starts 09/16/2026 3:00PMCONFIRMED 86% CONFIDENCE7 days agoMLCommons^[4] published the MLPerf Inference v6.1 results on 16 September 2026 - its GlobeNewswire release is datelined 'SAN FRANCISCO, Sept. 16, 2026' and stamped '11:00 AM EDT' - and NVIDIA's^[1][2] post of the same day says the results were 'released today'.
In its first peer-reviewed benchmark, NVIDIA's Vera Rubin NVL72 rack posted up to 3.7x the throughput of GB300 NVL72 on Qwen3-VL and 2.5x on DeepSeek-R1, submitted in the preview category of MLCommons' MLPerf Inference v6.1 round.
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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 02/11/2016CONFIRMED 88% 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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