ESA MELiSSA

Packet identity

Packet ID

organizations:entity-esa-melissa

Packet SHA-256 identity

b73932d670ac6b7026947364a09b97e329d5b4c8864e23b0e8d319d9a38a5e05

Corpus SHA-256 identity

8fa944604ca189f5a9216ca59f640ad2ca20972ad512f2f4970764716782e18d

Release ID

public-alpha-2026-07-26-research-visuals-r14

Source commit

3eb036fce3d711336c8c605625895e8a2e799ab0

Frozen corpus date

2026-07-25

Primary records

1

Reference sources

1

Questions and exclusions

Required questions

1. Required question 1 (exact ID: question-1)
   Does the official source establish the entity, current program, and bounded capability described?
2. Required question 2 (exact ID: question-2)
   Are potential fit, risks, access, geography, and engagement boundaries current and proportionate?
3. Required question 3 (exact ID: question-3)
   Could any wording imply partnership, endorsement, availability, procurement, authority, or affiliation that does not exist?

Explicit exclusions

• Indexing is not endorsement, due diligence completion, outreach, procurement, or a relationship.
• No aggregate organization score or sponsor-purchased ranking is permitted.

Requested controlled scopes: ecosystem-due-diligence, information-science

Frozen-evidence decision window: 90 days from the packet freeze. Not applicable to this packet family.

Complete primary record set

Every record below has one primary packet owner. Decisions must bind to the exact record and packet fingerprints; a changed lesson body, evidence grade, citation, locator, source snapshot, requirement, policy, release, or commit expires the old packet.

1. ecosystem-organization · entity-esa-melissa

   ESA MELiSSA

   Record fingerprint

   12760efedd9ae4abcc07f432ac7600dd461a36ab28cc93c238ec1d56fea27806

   Minimum approvals

   1

   Required scope groups

   bounded-competence: ecosystem-due-diligence

   High-consequence domains

   None under the named two-person rule

   Review state

   pending

   Published human decisions

   0

   Inspect the complete frozen review surface

   ID

   entity-esa-melissa

   Legacy ID

   org-agency-s-018

   Slug

   esa-melissa

   Name

   ESA MELiSSA

   URL

   https://www.esa.int/Enabling_Support/Space_Engineering_Technology/Melissa↗ (opens external site in a new tab)

   Category

   Agency, standards, and public research infrastructure

   Geography

   Europe

   Relevance

   enabling

   Engagement

   Proposed only, subject to a future fit check and then-current access rules: use public technical outputs for requirements mapping and, only if a formal route exists, assess a narrowly scoped research contribution through ESA or a listed partner. No outreach, eligibility determination, commitment, or procurement has occurred.

   Capability

   Regenerative life support, bioprocess modeling, microbial and plant compartments, water and waste recycling, controls, payload demonstrations, and system integration.

   Entity Kind

   European Space Agency research program and international consortium

   Link Checked At

   2026-07-25

   Relationship

   indexed only; no formal relationship

   Engagement Status

   proposed; not undertaken

   Profile Summary

   MELiSSA is an ESA-led regenerative life-support program and partner network developing compartmental biological and physicochemical processes, models, controls, payloads, and integrated-loop demonstrations for food, water, oxygen, and waste recycling.

   Potential Fit

   Could serve as a primary precursor corpus for mass-balance models, integrated-loop architecture, microbial processes, controls, reliability, and Earthside recycling applications.

   Risks

   1. MELiSSA remains a research program; no public evidence establishes complete, crew-ready, indefinite closure.
   2. Biological-loop failures can be nonlinear and high consequence, requiring independent review across microbiology, medicine, and controls.
   3. Consortium access, intellectual property, facilities, and calls are controlled by ESA and partners.

   Evidence Boundary

   Official-link review: the official ESA MELiSSA pages were reachable and describe objectives, scientific domains, phased development, contacts, and partner organizations. Public descriptions, performance, maturity, access, procurement, and current availability were not independently verified; independent review pending.

   Conflicts

   Conflicts were not assessed beyond publisher disclosure in this official-link review; financial, contracting, leadership, and institutional conflicts were not independently investigated.

   What Would Change

   Long-duration integrated human demonstrations, published failure and recovery data, complete mass balances, and an open collaboration route would materially change fit.

Linked records—not review targets here

These records provide dependency or relationship context. Their decisions belong to their single primary packet, preventing double counting.

• closed-loop-material-accounting · entity-esa-melissa partner-task-match:match-closed-loop-material-accounting-esa-melissa · c38889da3e6bb177ae9e2da786fbebe1e5738f64503dcb3b9a5d06c66bcf5edd

Frozen source snapshots

Source inclusion does not determine the disposition. Reviewers must inspect the cited locator and relation, note inaccessible material, and identify stronger or conflicting evidence.

Offline packet and worksheet

Downloads contain no reviewer contact details. Downloading does not create an account or store a review response in the GShips application. Ordinary provider request or analytics logs may record the download request. Work locally: the public site has no review account, upload endpoint, or decision-submission API.

Do not paste a completed decision, identity documents, private contact data, confidential conflict evidence, medical information, controlled material, or exploit details into a public form. Until a separately authorized private handoff exists, retain the completed worksheet locally.

Packet schema · JSON · Decision-bundle schema · JSON

Validate offline

Use Node.js 22.13.0 or later. Keep the packet, worksheet, completed decision, and all six kit files together in a local directory.

1. Download the six kit files below. Complete a copy of the JSON template offline and preserve its templateFingerprint.
2. Finalize a separate output file.

   node finalize-review-decision.mjs \
     --input DRAFT.json \
     --output COMPLETED.json

   This marks the copy complete and calculates an unkeyed canonical bundle fingerprint. A fingerprint detects changes; it is not a reviewer signature.

3. Validate the packet and completed copy.

   node check-review-decisions.mjs \
     --packet PACKET.json \
     --decision COMPLETED.json

   Add another --decision for each independent reviewer.

4. Interpret the result narrowly. A zero exit proves structural consistency only. Neither command appoints or qualifies a reviewer, establishes independence, accepts a decision, or authorizes publication.

• Bundle finalizer
• Validator command
• Decision policy module
• Fingerprint and packet-integrity module
• Review-domain policy module
• Canonical synthesis and interactive review specs