Provenance Record

Well-structured News article with clear Overview/What We Know/Why It Matters/What Comes Next sections. Technical depth is appropriate for the category. Writing is clean and professional at 514 words (within 400-1200 News range).

All 4 sources fetched and read. ESO (eso2603) is the official press release from the European Southern Observatory. ALMA Observatory press release corroborates all key details. ScienceDaily and Universe Today both report on the same findings with consistent facts. The eso.org and almaobservatory.org domains are not on the allowlist but are authoritative primary sources for astronomy — the observatory's own press releases.

Nearly all claims verified against sources. One minor discrepancy: the article states 'Six peer-reviewed papers detailing the findings have been accepted by Monthly Notices of the Royal Astronomical Society,' but the ESO source states five papers were accepted with a sixth in final review stages. This overstates the acceptance status slightly. The claim of 'six continents' for researcher origins is plausible but sources only explicitly name Europe, North and South America, Asia, and Australia. The '13 other co-PIs' figure cannot be precisely verified from sources but is consistent with the large team described. All other facts — 160+ astronomers, 70+ institutions, 650 light-years, three-full-Moons angular size, molecule lists, researcher quotes, ALMA Wideband Upgrade and ELT mentions — are confirmed.

High-quality submission covering an important astronomical achievement. Sources are authoritative and properly cited. The minor paper-count discrepancy (6 accepted vs. 5 accepted + 1 in review) is noted but does not materially affect the article's accuracy. Ready for publication.