The putative detection of phosphine in the atmosphere of Venus at an abundance of ∼20 ppb suggests that this gas is being generated by either indeterminate abiotic pathways or biological […]
Venus
Posted inPress Release, Venus
The Venusian Lower Atmosphere Haze as a Depot for Desiccated Microbial Life: A Proposed Life Cycle for Persistence of the Venusian Aerial Biosphere
We revisit the hypothesis that there is life in the Venusian clouds to propose a life cycle that resolves the conundrum of how life can persist aloft for hundreds of […]
Posted inVenus
Phosphine On Venus Cannot Be Explained By Conventional Processes
The recent candidate detection of 20 ppb of phosphine in the middle atmosphere of Venus is so unexpected that it requires an exhaustive search for explanations of its origin. Phosphorus-containing […]
Posted inPress Release, Venus
Phosphine Gas in the Cloud Decks of Venus
Measurements of trace-gases in planetary atmospheres help us explore chemical conditions different to those on Earth. Our nearest neighbor, Venus, has cloud decks that are temperate but hyper-acidic. We report […]
Posted inPress Release, Venus
Possible Marker Of Life Spotted On Venus
An international team of astronomers today announced the discovery of a rare molecule — phosphine — in the clouds of Venus. On Earth, this gas is only made industrially or […]
Posted inAstronomy & Telescopes, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Press Release, Venus
Phosphine Detected In The Atmosphere of Venus – An Indicator of Possible Life?
Keith’s note: There is a big press release coming out tomorrow (Monday, 14 September) morning at the Royal Astronomical Society. They want you to know its big news. The press […]
Posted inPress Release, Venus
On The Possible Evolutionary History Of The Water Ocean On Venus
We have investigated the possible evolutional history of the water ocean on Venus, adopting the one dimensional radiative-convective model, including the parameters as albedo and relative humidity. Under this model, […]
Posted inPress Release, Venus
NASA Scientists Explore Venus Habitable Climate Scenarios at NCCS
NASA Goddard Institute for Space Studies (GISS) scientists leveraged NASA supercomputing resources for several months to model a hypothetical climate history for Venus over the past 4.2 billion years. The […]
Posted inJupiter, Press Release, Venus
Could the Migration of Jupiter have Accelerated the Atmospheric Evolution of Venus?
In the study of planetary habitability and terrestrial atmospheric evolution, the divergence of surface conditions for Venus and Earth remains an area of active research. Among the intrinsic and external […]
Posted inPress Release, Venus
Venus As A Nearby Exoplanetary Laboratory
The key goals of the astrobiology community are to identify environments beyond Earth that may be habitable, and to search for signs of life in those environments. A fundamental aspect […]