25 MAY 2020 




 18 SEPTEMBER 2020 – 12:00 hrs noon (CEST) 

Submit Letter(s) of Intent [LOI] & List of Proposing team here – [LOIs UPLOAD IS NOW CLOSED]

In order to submit your LoI or Proposal, you need to be a registered user. To register or to login to the site, please go to the Menu in the top left corner.

  4 DECEMBER 2020 – 12:00 hrs noon (CET)  

Submit Full Proposals(s) here –  [UPLOAD PROPOSAL]

After submission of your LOI and scientific team, the Proposal Upload link will only be activated after the LOI Workshop.


Announcement in mid 2021 of selected candidate mission ideas.


As part of its Future Earth Observation Programme Period-1 (FutureEO-1), the European Space Agency (ESA) announces an opportunity for scientists from the Earth Observation (EO) community in ESA Member States, Canada and Slovenia to prepare proposals for ideas to be assessed as potential Earth Explorer Missions. These missions will be used to conduct research in the field of EO and/or to demonstrate the potential of new innovative EO techniques of relevance to both the scientific and the application-oriented user communities.

The Research Mission element of FutureEO-1 consists of a series of missions addressing critical Earth science issues. In the past, nine Earth Explorer missions have been selected for implementation, namely GOCE (Gravity field and steady-state Ocean Circulation Explorer), Aeolus (Atmospheric Dynamics Mission), CryoSat (Polar Ice Monitoring), SMOS (Soil Moisture and Ocean Salinity), Swarm (Earth’s magnetic field and environment), EarthCARE (Clouds, Aerosols and Radiation Explorer), Biomass (Forest Carbon mission), FLEX (Fluorescence Explorer), and FORUM (new insight into planet’s radiation budget and climate). In addition, three Earth Explorer 10 candidates are currently being studied in Phase 0 and four Scout candidate missions are undergoing system consolidation studies.

The motivation behind this Call is the Agency’s wish to engage the scientific community as far as possible in determining and advancing the content of the FutureEO. The Earth Observation Strategy and its challenges (see Earth Observation Science Strategy for ESA: A New Era for Scientific Advances and Societal Benefits, ESA SP-1329/1 and ESA’s Living Planet Programme: Scientific Achievements and Future Challenges – Scientific Context of the Earth Observation Science Strategy for ESA, ESA SP-1329/2, European Space Agency, Noordwijk, the Netherlands, 2015) was established in 2015 on the basis of a bottom-up process that started with a consultation of the broad scientific community and contains the wide-ranging and ambitious scientific challenges to be addressed.

Taking into account the experience from previous calls, and in line with the spirit of the programme, the Agency is soliciting ideas for missions to be implemented as ESA-led Earth Explorer missions. Mission candidates will be selected from the proposed ideas on the basis of their innovation and scientific excellence.

The total cost of the mission should not exceed 450 M€ to ESA (at 2020 economic conditions). However, proposals with more cost-effective solutions are strongly encouraged.

Proposals in response to the Call shall be lead and submitted by scientists with the nationality of, and living and working at an institution based in ESA Member States, Canada and Slovenia, though the proposing teams may also include scientists from non-ESA member states. 


EE-11 Call Text

Earth Observation Science Strategy for ESA (ESA SP-1329/1)

ESA's Living Planet Programme Scientific Achievements and Future Challenges (ESA SP-1329/2)

Scientific Readiness Levels Handbook

Template for Proposal Core Team Members

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