The 12th Announcement of Opportunity (AO) and a Letter of Invitation by the ESA Director of Science were published on 19 May 2026 at https://www.cosmos.esa.int/web/iris-2026
All IRIS science planning and training can be done remotely, so there is no requirement for the successful applicants to carry out these activities in Palo Alto, California, USA.
Applications from Early-Career Scientists are especially encouraged.
Proposals shall be submitted electronically in PDF format at the above web site and must be received not later than 23 June 2026, 12:00 (noon) Central European Summer Time (CEST).
For further information, contact David Williams (ESA Project Scientist for IRIS, [email protected]) and Yannis Zouganelis (Solar System Science Coordinator for ESA, [email protected]).