# Greaves 2020: Phosphine gas in the cloud decks of Venus

> Jane S. Greaves, Anita M. S. Richards, William Bains et al., 2020. 11 records on Mysteries Department cite it. The original report, the observation…

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[Sources](https://mysteriesdept.com/sources)[Phosphine in the clouds of Venus](https://mysteriesdept.com/mysteries/venus-phosphine)Greaves 2020

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# Phosphine gas in the cloud decks of Venus

Jane S. Greaves, Anita M. S. Richards, William Bains et al., 2020. _Nature Astronomy 5(7), 655–664_.

The claim. Single-line detections of the phosphine 1–0 rotational line at 266.94 GHz with the JCMT (June 2017) and ALMA (5 March 2019), at up to about 15 sigma, interpreted as about 20 ppb of phosphine. The authors find no known abiotic source and mention, by analogy with Earth, possible biological production.

**Phosphine in the clouds of Venus** ArticleCopy of **[JCMT spectra of Venus at 266.94 GHz, June 2017](https://mysteriesdept.com/mysteries/venus-phosphine/artifacts/ART0CQY25YY25G0/jcmt-spectra-of-venus-at-266-94-ghz-june-2017)** doi: **[10.1038/s41550-020-1174-4](https://doi.org/10.1038/s41550-020-1174-4)** Checked against the original0

## What it's used for here

The original report, the observation details and the abundance first claimed.

## Cited by on this site 11 records

[A real absorption feature from Venus's atmosphere is present in both the JCMT and ALMA data.](https://mysteriesdept.com/mysteries/venus-phosphine/answers/ANS0CQY1VF01P0K/a-real-absorption-feature-from-venuss-atmosphere-is-present)

Answer

ANS

[Production by microbes living in the clouds.](https://mysteriesdept.com/mysteries/venus-phosphine/answers/ANS0CQY23RM582W/production-by-microbes-living-in-the-clouds)

Answer

ANS

[The absorption is phosphine.](https://mysteriesdept.com/mysteries/venus-phosphine/answers/ANS0CQY1YWC27F9/the-absorption-is-phosphine)

Answer

ANS

[Unknown photochemistry or geochemistry.](https://mysteriesdept.com/mysteries/venus-phosphine/answers/ANS0CQY23164PM1/unknown-photochemistry-or-geochemistry)

Answer

ANS

[JCMT spectra of Venus at 266.94 GHz, June 2017](https://mysteriesdept.com/mysteries/venus-phosphine/artifacts/ART0CQY25YY25G0/jcmt-spectra-of-venus-at-266-94-ghz-june-2017)

ART

[JCMT spectra of Venus at 266.94 GHz, June 2017: document](https://mysteriesdept.com/mysteries/venus-phosphine/copies/CPY0CQY26PC00MA/jcmt-spectra-of-venus-at-266-94-ghz-june-2017-document)

CPY

[JCMT spectra of Venus at 266.94 GHz, June 2017: document](https://mysteriesdept.com/mysteries/venus-phosphine/copies/CPY0CQY26EJ4R0R/jcmt-spectra-of-venus-at-266-94-ghz-june-2017-document)

CPY

[Greaves and colleagues report phosphine in Nature Astronomy](https://mysteriesdept.com/mysteries/venus-phosphine/events/EVT0CQY1RS26BKM/greaves-and-colleagues-report-phosphine-in-nature-astronomy)

EVT

[JCMT records Venus at 266.94 GHz on five mornings](https://mysteriesdept.com/mysteries/venus-phosphine/events/EVT0CQY1R9E1Q2X/jcmt-records-venus-at-266-94-ghz-on-five-mornings)

EVT

[Jane S. Greaves](https://mysteriesdept.com/mysteries/venus-phosphine/people/FIG0CQY1QA638JS/jane-s-greaves)

FIG

[Phosphine in the clouds of Venus](https://mysteriesdept.com/mysteries/venus-phosphine)

The mystery article

MYS

## Cite it

```
Greaves, J. S., Richards, A. M. S., Bains, W., Rimmer, P. B., Sagawa, H., Clements, D. L., & et al. (2020). Phosphine gas in the cloud decks of Venus. Nature Astronomy 5(7), 655–664. https://doi.org/10.1038/s41550-020-1174-4
```

[Read it free at doi.org](https://doi.org/10.1038/s41550-020-1174-4)

Key

**SRC** 0CQY1GQ84YF1

Kind

Journal article

Rights

The publisher's

Kept

27 Oct 2026, for editors

Checked

Against the published article

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[apollo](https://mysteriesdept.com/u/apollo)

The record

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