Planetary Scientist @LiraAstro @Obs_Paris, ESA/EnVision mission to Venus Science Working Team, NASA/Caltech JPL VERITAS Mission co-Investigator
@Obs_Paris, France
Joined October 2013
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The @esa mini-site dedicated to @ESA_Envision is now on line! Scheduled for launch in 2031, Envision will provide a complete view of Venus from its inner core to its upper atmosphere to determine how and why Venus and Earth evolved so differently. esa.int/Science_Exploration/…
Thomas Widemann retweeted
I'm very excited to share my latest paper about why Venus has no moon. In almost every scenario, a hypothetical Venus moon spirals inward and is destroyed at the Roche limit. Venus' lack of moon may thus be a natural consequence of its slow spin. arxiv.org/abs/2608.25036
Thomas Widemann retweeted
Field test!
Using a helicopter to simulate a slow fall through Venus’ atmosphere, the DAVINCI team confirmed that their probe’s descent imaging system can read the landscape below & deliver results. Here's what happened and how it's preparing us for Venus: go.nasa.gov/4f1TqpB
Thomas Widemann retweeted
From Bristol to Venus!
OHB Space UK will help develop @ESA's EnVision mission, exploring how Venus transformed into a hostile greenhouse world, and shed light on the formation of Earth-like planets. 🌍
Read more 👉 esa.int/Space_in_Member_Stat…
ALT Artist impression of ESA's Envision mission at Venus. Image credit: ESA/Paris Observatory/VR2Planets
Venus’ atmosphere jumps and waves | The University of Tokyo u-tokyo.ac.jp/focus/en/press…
Berlioz Requiem in Paris (1975): Leonard Bernstein conducts La Marseillaise, followed by Berlioz's monumental work at the Chapel of St. Louis des Invalides in Paris before an audience including President Valéry Giscard d'Estaing. youtu.be/uQllcLaAxis?si=Rt3b… via @YouTube
Thomas Widemann retweeted
Alpha Regio is one of the most interesting places in the Solar System. Its tessera terrain may preserve clues to ancient crustal processes on Venus, and DAVINCI is designed to explore that story by descending through the atmosphere to the surface.
Thomas Widemann retweeted
Only one chance in this lifetime…
Like watching sunset at the beach from the most foreign seat in the cosmos, I couldn’t resist a cell phone video of Earthset. You can hear the shutter on the Nikon as @Astro_Christina is hammering away on 3-shot brackets and capturing those exceptional Earthset photos through the 400mm lens. @AstroVicGlover was in window 3 watching with @Astro_Jeremy next to him.
I could barely see the Moon through the docking hatch window but the iPhone was the perfect size to catch the view…this is uncropped, uncut with 8x zoom which is quite comparable to the view of the human eye. Enjoy.
Thomas Widemann retweeted
In particular around the planet’s geological history and activity.
Envision, with its next-generation suite of instruments, is set to pick up the story.
Discover our Venus exploration story here 👉 esa.int/Science_Exploration/…
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ALT Artist impression of Envision at Venus. Almost the entire planet is visible on the right side. On the left, we see the spacecraft from the side, with its solar arrays stretched.
Du 13 au 15 mars, la 14ème édition des Grandes Heures du château de Sceaux, intitulée « Les mystères du ciel », rend hommage, autour de la figure de la duchesse du Maine, aux femmes, souvent méconnues, qui ont œuvré pour la connaissance en matière d’astronomie aux XVIIe et XVIIIe siècles.
Info et réservations : domaine-de-sceaux.hauts-de-s…
Les mystères du ciel. L’astronomie de la duchesse du Maine à nos jours domaine-de-sceaux.hauts-de-s…
ESA Graduate Trainee in Envision Venus Surface Targets Analysis Job Details | ESA jobs.esa.int/job/Noordwijk-E…
Thomas Widemann retweeted
A mission like @ESA_Envision takes years of planning and a huge amount of teamwork between scientists, engineers, legal and project management officers.
It's a process we want to share with you through a new video series planned from next year onwards, which will follow the development of this exciting Venus mission 🛰️
Did we make you curious?
Here's a teaser of what's to come👇
Première observation d’une tempête stellaire par le réseau Low-Frequency Array (LOFAR), la station française se situe sur le site de Nançay de l'Observatoire de Paris youtu.be/JaphJsi_9FY?si=N5S4… via @YouTube
Le Grand Dauphin (1661-1711), Fils de roi, père de roi et jamais roi via @CVersailles chateauversailles.fr/actuali…
Thomas Widemann retweeted
🌍🌌 New study: Venus, Earth & Mars hold the key to exoplanet climates!
🌋 Geological processes matter as much as stellar effects
☁️ Ignoring geology risks oversimplifying habitability
Read more at👉 agupubs.onlinelibrary.wiley.…
#Exoplanets #PlanetaryScience #AGU25 #AGUPSS25
Pluton, la planète déchue via @franceculture radiofrance.fr/franceculture…
ESA studying impacts of proposed NASA budget cuts spacenews.com/esa-studying-i… via @SpaceNews_Inc
Sur Vénus, ces mystérieuses « couronnes » qui intriguent les scientifiques depuis plus de 40 ans lefigaro.fr/sciences/sur-ven…
How Venus-Like Exo-Planets Can Help Map Nearby Habitable Zones via @forbes forbes.com/sites/brucedormin…
Les défis scientifiques et techniques de la mission @ESA_Envision avec Paolo Musi (Thales Alenia Space) et Anne Grete Straume-Lindner (Agence spatiale européenne) futura-sciences.com/sciences…
