# Greaves 2021: Reply to: No evidence of phosphine in the atmosphere of Venus from independent analyses > Jane S. Greaves, Anita M. S. Richards, William Bains et al., 2021. 10 records on Mysteries Department cite it. The revised, lower abundance and the claim… Source: https://mysteriesdept.com/sources/SRC0CQY1H6W1K9Y/reply-to-no-evidence-of-phosphine-in-the-atmosphere-of-venus Publisher: Mysteries Department Licence: CC BY 4.0 (credit Mysteries Department and link the page) --- [Sources](https://mysteriesdept.com/sources)[Phosphine in the clouds of Venus](https://mysteriesdept.com/mysteries/venus-phosphine)Greaves 2021 **0** # Reply to: No evidence of phosphine in the atmosphere of Venus from independent analyses Jane S. Greaves, Anita M. S. Richards, William Bains et al., 2021. _Nature Astronomy 5(7), 636–639_. The team's reply and first re-analysis of re-processed ALMA data. Phosphine is recovered at about 5 sigma, with local abundances peaking at about 5–10 ppb and a planet average of about 1–4 ppb, below the earlier 7+ ppb; the authors argue the JCMT line cannot be sulphur dioxide and that the two telescopes agree if phosphine varies over time. **Phosphine in the clouds of Venus** ArticleCopy of **[ALMA observation of Venus in Band 6, 5 March 2019](https://mysteriesdept.com/mysteries/venus-phosphine/artifacts/ART0CQY27600Q2K/alma-observation-of-venus-in-band-6-5-march-2019)** doi: **[10.1038/s41550-021-01424-x](https://doi.org/10.1038/s41550-021-01424-x)** Checked against the original0 ## What it's used for here The revised, lower abundance and the claim of reconciliation through variability. ## Cited by on this site 10 records [Phosphine varies with altitude and time, destroyed by sunlight high up and more abundant within the clouds,…](https://mysteriesdept.com/mysteries/venus-phosphine/answers/ANS0CQY21AG099B/phosphine-varies-with-altitude-and-time-destroyed-by) Answer ANS [ALMA observation of Venus in Band 6, 5 March 2019](https://mysteriesdept.com/mysteries/venus-phosphine/artifacts/ART0CQY27600Q2K/alma-observation-of-venus-in-band-6-5-march-2019) ART [ALMA observation of Venus in Band 6, 5 March 2019: document](https://mysteriesdept.com/mysteries/venus-phosphine/copies/CPY0CQY27XE1B17/alma-observation-of-venus-in-band-6-5-march-2019-document) CPY [Independent measurements suggest under about 5 ppb above 60 km and up to about 100 ppb near 50 km.](https://mysteriesdept.com/mysteries/venus-phosphine/evidence/EVD0CQY21JA7WXZ/independent-measurements-suggest-under-about-5-ppb-above-60) Evidence EVD [The line is wider than SO2 features and the SO2 abundance needed would be an extreme outlier.](https://mysteriesdept.com/mysteries/venus-phosphine/evidence/EVD0CQY1Z461KS9/the-line-is-wider-than-so2-features-and-the-so2-abundance) Evidence EVD [The team reports the feature in data reduced with revised calibration and in new JCMT data.](https://mysteriesdept.com/mysteries/venus-phosphine/evidence/EVD0CQY1YCR5FCM/the-team-reports-the-feature-in-data-reduced-with-revised) Evidence EVD [The team reports the line at about 5 sigma in ALMA data reprocessed with the revised calibration.](https://mysteriesdept.com/mysteries/venus-phosphine/evidence/EVD0CQY1VPT5C0Z/the-team-reports-the-line-at-about-5-sigma-in-alma-data) Evidence EVD [The team reports phosphine at about 5 sigma in reprocessed ALMA data](https://mysteriesdept.com/mysteries/venus-phosphine/events/EVT0CQY1S8P5MFE/the-team-reports-phosphine-at-about-5-sigma-in-reprocessed) EVT [Phosphine in the clouds of Venus](https://mysteriesdept.com/mysteries/venus-phosphine) The mystery article MYS [Can the claimed phosphine be reconciled with the upper limits from other instruments?](https://mysteriesdept.com/mysteries/venus-phosphine/questions/QST0CQY1TZC4EZE/can-the-claimed-phosphine-be-reconciled-with-the-upper) Question QST ## Cite it ``` Greaves, J. S., Richards, A. M. S., Bains, W., Rimmer, P. B., Clements, D. L., Seager, S., & et al. (2021). Reply to: No evidence of phosphine in the atmosphere of Venus from independent analyses. Nature Astronomy 5(7), 636–639. https://doi.org/10.1038/s41550-021-01424-x ``` [Read it free at doi.org](https://doi.org/10.1038/s41550-021-01424-x) Key **SRC** 0CQY1H6W1K9Y Kind Journal article Rights The publisher's Kept 27 Oct 2026, for editors Checked Against the published article Added by [apollo](https://mysteriesdept.com/u/apollo) The record Bibliographic records are CC0. Take this one as CSL-JSON, BibTeX or RIS. [CSL-JSON](https://mysteriesdept.com/sources/SRC0CQY1H6W1K9Y/reply-to-no-evidence-of-phosphine-in-the-atmosphere-of-venus/csl.json)