This webinar also marks the first in a new collaboration between Europlanet and EU-funded COST Action PLANETS.

Nozair Khawaja (Freie Univerisität Berlin) discusses the current status of organics detected in the plume material emerging from Enceladus’ south polar region by Cassini’s mass spectrometers. He will explore the latest results on the origin of these organics and methods for tracing their molecular trail from Enceladus’s core to its plume.

Enceladus mission study scientist Jörn Helbert presents the new ESA L4 mission concept to explore this exciting moon.

01:00 Introduction about COST Actions - Planets by Alexandres Lehtmets.

00:29:Juice mission update (Olivier Witasse)

While large-scale research infrastructure, such as with the European Spallation Source (ESS) or space telescopes, is often necessary to go "where no-one has gone before", most published research is performed on small equipment for which there is no long-term plan for acquisition or maintenance. The research output from small-scale infrastructure includes many of the important works that are later honoured by awards because of their impact on society.

In this webinar, Prof Morten Meldal will discuss how small-scale infrastructure has had a vital role to play in his own Nobel Prize-winning work and in producing translational research that can change the world.

Animation of the electrodynamic interaction between Enceladus and Saturn. The primary Alfvén wing is shown in blue, and the reflected Alfvén wings in magenta. The arrow indicates the corotation direction of the Enceladus plasma torus. Relative sizes of Saturn and Enceladus are not to scale. Design & Animation: Fabrice Etifier - École Polytechnique.

02:16 Water and sulfur dioxide thermal mapping on Venus : Long-term monitoring and upper limits on minor species, presented by Thérèse Encrenaz

The sulphur cycle in the atmosphere of Venus has been object of study for many years. Our speakers Thérèse Encrenaz (Paris Observatory) and Rakesh Mogul (California State Polytechnic University) recently published brand new results that feed new information into this study. Thérèse Encrenaz has been observing Venus for decades from Earth and she will provide with an overview of her findings. Rakesh Mogul re-analysed Pioneer Venus descent probe data and discovered new information about the chemical composition of the sulphuric acid cloud particles. Join us in this 75 minutes long get-together listening to these new findings, and participating in the open informal discussion that will follow to share your thoughts on this enigmatic topic.

Re‐Analysis of Pioneer Venus Data: Water, Iron Sulfate, and Sulfuric Acid are Major Components in Venus' Aerosols (https://doi.org/10.1029/2024JE008582)

Paper series authored by Encrenaz et al:

HDO and SO2 thermal mapping on Venus: evidence for strong SO2 variability (http://dx.doi.org/10.1051/0004-6361/201219419)

The first Europlanet Regional Hub outside Europe, Europlanet Colombia, was launched on 8 November 2025 during an event attended by 120 people at the Maloka Interactive Science and Technology Centre in Bogotá. This compilation of the EuroCol Julio Garavito Prize videos were shown at the event.

The first Europlanet Regional Hub outside Europe, Europlanet Colombia, was launched on 8 November 2025 during an event attended by 120 people at the Maloka Interactive Science and Technology Centre in Bogotá. Dr Tatiana Bocanegra contributed this video message for the event.

The first Europlanet Regional Hub outside Europe, Europlanet Colombia, was launched on 8 November 2025 during an event attended by 120 people at the Maloka Interactive Science and Technology Centre in Bogotá. Dr Jonathan Pelegrin contributed this video message for the event.

The first Europlanet Regional Hub outside Europe, Europlanet Colombia, was launched on 8 November 2025 during an event attended by 120 people at the Maloka Interactive Science and Technology Centre in Bogotá. Dr Heidy M. Quitián-Lara contributed this video message for the event.

The first Europlanet Regional Hub outside Europe, Europlanet Colombia, was launched on 8 November 2025 during an event attended by 120 people at the Maloka interactive science and technology centre in Bogotá. Dr Felipe Fantuzzi contributed this video message for the event.