Claim

Using a stacking analysis of 4.5 years of observations, LHAASO detected very-high-energy gamma-ray emission from five nearby giant molecular clouds, with spectra consistent with cosmic rays interacting with interstellar matter over 1–100 TeV.

Type OBSERVATIONAL · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 16001

33 words; atomic claims are usually under 25a comma-separated series may list several propositions

Referenced 85 times: checked 2, looked up by assistants 0, viewed 54, shared 29. A count of attention, not evidence.

Topics

Astronomy and space · 1efd24fe Physics · 1efd24fe

Assessment

Supported

Score: 0.8808 under ledger-default@0.3.0 at snapshot 27745

3 of 4 review checks done · 1 counted · 2 by the author only

1 independent evidence lineage · review checks 1 of 4 · stability MEDIUM

Main unresolved issue: 4 counted evidence items have no independence review; repeats of one origin may be counted as several coverage:c3fe36c2-8e13-8cb7-9931-0e7bbd9eb445

Not yet independently audited.Evidence reviewed so far supports this claim, but only 1 of 4 review checks has been done.Every quoted passage was confirmed on the page when Galedra fetched it.

Why?

Strongest counted support: LHAASO reports stacked very-high-energy gamma-ray emission from five nearby giant molecular clouds over 4.5 years, consistent with cosmic-ray interactions across 1–100 TeV. weight 2.000000 evidence

Suppressed as dependent: The passage directly reports the five-cloud stacked detection, 4.5-year observation span, and 1–100 TeV cosmic-ray consistency.; The Nature Astronomy study reports LHAASO’s 4.5-year stacked detection of very-high-energy gamma rays from five nearby giant molecular clouds, with 1–100 TeV spectra consistent with cosmic-ray interactions with interstellar matter.

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Unresolved.

Hide calculation

0.8808 under ledger-default@0.3.0 at snapshot 27745 · state Supported · Review checks: 1 of 4 · stability MEDIUM · 4 sources, 1 independent lineage

Model ledger-default@0.3.0 (the default model, not the answer) · snapshot 27745 · trace sha256:a1d28644beffe92bb48b8d2c2bb9a01a33218d3861f28f53b8ee682e083939b7

Last changed at entry seq 16213; nothing logged since has borne on this claim.

How the number was reached

Each counted link is weighed by multiplying the factors the model declares; a factor it does not declare is not shown. Every factor name below links to what that number means.

Link	Working	Weight	Counted as
f65b110c qualify	relevance STRONG 1.2 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.080000	0.000000 (non directional)
a408354d support	relevance DIRECT 2.0 × observation MEASUREMENT 1.0 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	2.000000	0.000000 (dependent strongest only, kept b14334e2)
3c631242 support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	0.000000 (dependent strongest only, kept b14334e2)
b14334e2 support	relevance DIRECT 2.0 × observation MEASUREMENT 1.0 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	2.000000	2.000000

prior 0.50 → log-odds 0.000000 + 2.000000 (the counted weights) = 2.000000 → probability 0.8808

Under neighbouring settings of the same model: 0.8022 to 0.9309, a spread of 0.1287.

Half-even rounding, six places for weights and four for the probability. The same inputs under the same model reproduce this exactly; that is what the trace hash above is for. How a score is worked out explains every factor, why it is there, and what the model sets it to.

Your view

Registered views

Nobody has registered a view yet.

Registered views are personal belief, not evidence: they never change Galedra's assessment. Affiliations are self-declared and shown only for groups of 5 or more.

Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

“Using a stacking analysis of 4.5 years of observations, LHAASO detected very-high-energy gamma-ray emission from five nearby giant molecular clouds, with...” · 1 claim · 29 September 2026
“Using a stacking analysis of 4.5 years of observations, LHAASO detected very-high-energy gamma-ray emission from five nearby giant molecular clouds, with...” · 1 claim · 29 September 2026

Evidence for

LHAASO reports stacked very-high-energy gamma-ray emission from five nearby giant molecular clouds over 4.5 years, consistent with cosmic-ray interactions across 1–100 TeV.

From LHAASO detection of ultrahigh-energy γ-ray emission towards giant molecular clouds Read 2026-09-29 Relevance DIRECT Steps 0 Counted
The passage directly reports the five-cloud stacked detection, 4.5-year observation span, and 1–100 TeV cosmic-ray consistency.

From LHAASO detection of ultrahigh-energy γ-ray emission towards giant molecular clouds Read 2026-09-29 Relevance DIRECT Steps 0 Counted
The Nature Astronomy study reports LHAASO’s 4.5-year stacked detection of very-high-energy gamma rays from five nearby giant molecular clouds, with 1–100 TeV spectra consistent with cosmic-ray interactions with interstellar matter.

From LHAASO detection of ultrahigh-energy γ-ray emission towards giant molecular clouds Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Primary article directly matches every observational element in the claim.

Evidence against

None.

Qualifications

The underlying analysis found no individually significant excess in any cloud and relied on stacking to detect weak aggregate emission.

From LHAASO Detection of Ultra-High-Energy Gamma-Ray Emission toward the Giant Molecular Clouds Read 2026-09-29 Relevance STRONG Steps 0 Counted

This does not negate the stated stacked result, but materially limits interpreting it as five separately significant cloud detections.

Suppressed as dependent

Evidence	Group	Kept instead
337a397b		b14334e2
8d2242c3		b14334e2

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

None. Edges are stored and displayed; v0.1 does not propagate probability across them.

Review checklist

Review checks: 1 of 4

3 checks by this claim's own author, alongside the independent review above. 1 OPPOSING EVIDENCE SEARCH · 1 QUALIFIER CHECK · 1 EVIDENCE VERIFICATION. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	f65b110c, a408354d, 3c631242, b14334e2

Summary

Supported. The main support is: LHAASO reports stacked very-high-energy gamma-ray emission from five nearby giant molecular clouds over 4.5 years, consistent with cosmic-ray interactions across 1–100 TeV. 28d14e62

2 further items repeat the same origin and are not independent evidence. 337a397b8d2242c3

Qualifier: The underlying analysis found no individually significant excess in any cloud and relied on stacking to detect weak aggregate emission. 1983ccc7

A search for evidence in the opposing direction found something; see the counted evidence. cc7afffc

Review checks: 1 of 4. coverage:c3fe36c2-8e13-8cb7-9931-0e7bbd9eb445

Generated by stub-v0.1; every sentence cites graph ids.

Contribution history

seq	event	detail
16001	APPENDED
16002	ACCEPT	AUTOMATIC_AFTER_VALIDATION
16007	LINK_EVIDENCE	by 1efd24fe (accepted)
16024	TASK_RESULT	by 1efd24fe (accepted)
16066	TASK_RESULT	by 1efd24fe (accepted)
16212	LINK_EVIDENCE	by 1efd24fe (accepted)

Score trace

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    "conservative": "0.8022"
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  "code_hash": "sha256:c61a6fdf35a754a0d7e958df149036a083c0eaeb7d2d2e52704ec32b0c36def7",
  "contested": false,
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  "snapshot_seq": 16213,
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