Author Archive
A hellish childhood difficult to model.
A team of French and Swiss scientists, including astronomers from the University of Geneva and the National Centre of Competence in Research (NCCR) PlanetS, has published a study leading to rethink what we know about the first climate of the Earth, back when it was still covered in lava. The study, published in the journal […]
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Tumultuous migration on the edge of the Hot Neptune Desert
All kinds of exoplanets orbit very close to their star. Some look like the Earth, others like Jupiter. Very few, however, are similar to Neptune. Why this anomaly in the distribution of exoplanets? Researchers from the University of Geneva (UNIGE) and the National Centre of Competence in Research (NCCR) PlanetS have observed a sample of […]
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James Webb reveals the atmospheric secrets of an exoplanet
The James Webb Space Telescope (JWST) and its unparalleled images of our Universe offers us a new first: by combining several instruments, it draws a molecular and chemical portrait of the atmosphere of the exoplanet WASP-39b. It highlights the presence of water, carbon dioxide and especially, for the first time, sulfur dioxide created through reactions […]
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Espresso detects barium in the atmosphere of an exoplanet
An international team including researchers from the University of Geneva (UNIGE) and the National Centre of Competence in Research (NCCR) PlanetS has detected the heaviest element ever found in the atmosphere of an exoplanet: barium. This feat was made possible by ESPRESSO, a spectrograph developed largely by the UNIGE and installed on the Very Large […]
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Open Days at the Observatory of Geneva
The Observatory of Geneva celebrates its 250th anniversary with a year of activities for the public between June 2022 and June 2023. To launch these festivities, the Observatory of Geneva opens its doors for a special weekend on 18th and 19th June 2022. Come and discover the researchers of the astronomy department of the University […]
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