We strongly advise Mac users running on Apple silicon systems to refrain from updating their operating system to Sonoma 14.4 until further notice.
Updating to this version may result in disruptions to the functionality of our Observing Tool (OT), Phase I Tool (PIT), and other Java based tools.

The 2024B Gemini Observatory Call for Proposals has been released. Proposals are being accepted for observations from 1 August, 2024 to 31 January, 2025. Gemini North and Gemini South are expected to have 153 and 157 nights available for science, respectively. A new version of the Phase I Tool (PIT) has been released to support proposal submissions.

While Gemini is once again observing after the Cyber Incident, there are some operational issues which we are still working out. We are writing to inform you of the operational limitations we are working under while work continues.

In particular, some of the usual tools for communicating program status are currently unavailable or not fully functional, and we are actively working to minimize the impact on users.

Gemini North and Gemini South are taking science data

Gemini 2023B observing programs and schedule have been announced!

Notification emails were sent to successful PIs on June 15, 2023. Please check the schedules page for more information.

Note that the latest version of the Observing Tool is required to access and update 2023B programs.

Image: International Gemini Observatory/NOIRLab/NSF/AURA/M. Paredes

Gemini 2022B observing programs and schedule have been announced!

Notification emails were sent to successful PIs on June 15, 2022. Please check the schedules page for more information.

Note that the latest version of the Observing Tool is required to access and update 2022B programs.

Image: International Gemini Observatory/NOIRLab/NSF/AURA/M. Paredes