The initial reports of the presence of phosphine in the cloud decks of Venus has led to the suggestion that volcanism was the source of phosphine, through volcanic phosphides ejected […]
Phosphine
Posted inVenus
Venusian Phosphine: A 'Wow!' Signal In Chemistry?
The potential detection of ppb levels phosphine (PH3) in the clouds of Venus through millimeter-wavelength astronomical observations is extremely surprising as PH3 is an unexpected component of an oxidized environment […]
Posted inVenus
Recovery of Spectra of Phosphine in Venus' Clouds
We recover PH3 in the atmosphere of Venus in data taken with ALMA, using three different calibration methods. The whole-planet signal is recovered with 5.4{\sigma} confidence using Venus bandpass self-calibration, […]
Posted inVenus
The Phosphene Controversy: Is it Phosphene? Is there life on Venus?
On 14th September 2020, the Royal Astronomical Society made an official statement coupled with a webminar on the discovery of phosphine on Venus. Single-line millimetre-waveband spectral detections of phosphine (with […]
Posted inVenus
On the Robustness of Phosphine Signatures in Venus' Clouds
We published spectra of phosphine molecules in Venus’ clouds, following open-science principles in releasing data and scripts (with community input leading to ALMA re-processing, now benefiting multiple projects). Some misconceptions […]
Posted inVenus
Re-analysis Of Phosphine In Venus' Clouds
We first respond to two points raised by Villanueva et al. We show the JCMT discovery spectrum of PH3 can not be re-attributed to SO2, as the line width is […]
Posted inVenus
No Phosphine In The Atmosphere Of Venus
The detection of phosphine (PH3) has been recently reported in the atmosphere of Venus employing mm-wave radio observations (Greaves et at. 2020). We here demonstrate that the observed PH3 feature […]
Posted inVenus
Re-analysis Of The 267-GHz ALMA Observations of Venus: No Statistically Significant Detection Of Phosphine
Context: ALMA observations of Venus at 267 GHz have been presented in the literature that show the apparent presence of phosphine (PH3) in its atmosphere. Phosphine has currently no evident […]
Posted inPress Release, Venus
Is Phosphine In The Mass Spectra From Venus' Clouds?
Considering the implications of the reported single spectral line detection of phosphine (PH3) by Greaves et al., we were inspired to re-examine data obtained from the Pioneer-Venus Large Probe Neutral […]
Posted inPress Release, Venus
Hypothesis Perspectives: Might Active Volcanisms Today Contribute To The Presence Of Phosphine In Venus's Atmosphere?
We propose an abiotic geological mechanism that accounts for the abundance of phosphine detected by Greaves et al., 2020. We hypothesize that trace amounts of phosphides formed in the mantle […]