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Emmanuel Marcq @MarcqPlanets

Planetary Atmospheric Scientist (esp. #Venus), Teaching (astro)physics at @uvsq. Now mostly on the Other website: @marcqplanets.bsky.social

Joined April 2014
  • Tweets 3,157
  • Following 298
  • Followers 785
86 Photos and videos
Emmanuel Marcq retweeted
Gro-Tsen@gro_tsen
27 Jun 2025
Il faudrait vraiment analyser l'origine de ce courant de pensée qui prétend que «rafraîchir son logement quand il fait trop chaud dehors» est un luxe frivole et un gâchis d'énergie, alors que PERSONNE ne le pense pour «réchauffer son logement quand il fait trop froid dehors».
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Emmanuel Marcq retweeted
Ariel Space Mission@ArielTelescope
6 Dec 2024
New article from the researchers at the Instituto de Astrofísica e Ciências do Espaço (IA) 👀 IA's Pedro Machado is an Ariel Consortium board member & coordinator of the Ariel working group linking the study of exoplanet atmospheres with that of the Solar System
Screen capture of the first page of research article 'Transmission Spectroscopy Along the Transit of Venus: A Proxy for Exoplanets Atmospheric Characterization'. A link to this article is in the next tweet of this thread.

ALT Screen capture of the first page of research article 'Transmission Spectroscopy Along the Transit of Venus: A Proxy for Exoplanets Atmospheric Characterization'. A link to this article is in the next tweet of this thread.

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À l'Observatoire de Haute Provence avec les étudiant•es de M2 du stage #SIMO, on jongle entre les nuages pour regarder des planètes !
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Petits détails techniques/scientifiques : * Les images sont en fausses couleurs (B = filtre vert; V = filtre rouge ; R = filtre infrarouge) * On voit bien les 4 satellites de Jupiter tous du même côté (ainsi que les défauts d'alignement résiduels entre les canaux RVB) ;
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* Saturne est sombre en IR proche comparativement à ses anneaux de glace. Signature du méthane gazeux dans son atmosphère ?
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Emmanuel Marcq retweeted
Sciences et Avenir@Sciences_Avenir
22 Oct 2024
Tribune. Une décision qui menace la vocation scientifique du Palais de la Découverte 👉 l.sciencesetavenir.fr/Nfl
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A juicy picture for sure! esa.int/ESA_Multimedia/Image…

Juice snaps an Earth–Moon portrait

Juice snaps an Earth–Moon portrait

esa.int
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Emmanuel Marcq retweeted
Kevin Olsen@DrKSOlsen
9 Sep 2024
Highlight from the future missions concept was the very loud video of the Tumbleweed Mars rover prototype teamtumbleweed.eu/our-rover/
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Emmanuel Marcq retweeted
Europlanet 🇪🇺@europlanetmedia
9 Sep 2024
Coffee time, the best time to chat and discuss with the colleagues from all over the world! #EPSC2024
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Emmanuel Marcq retweeted
LIRA astro@LiraAstro
5 Sep 2024
@LesiaAstro @Obs_Paris recherche un profil d'ingénieur en développement logiciel pour les moyens de tests de l'instrument VenSpec-U. Il s'agit d'un des instruments qui équipera la sonde #Envision de l'@esa pour l'exploration de la planète Vénus en 2030 . lesia.obspm.fr/-Emplois-stag…
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Emmanuel Marcq retweeted
Seth Jacobson@sethajacobson
21 Aug 2024
This is definitely still in a lot of intro textbooks but … planetary scientists no longer see a lead connection between a planetary magnetic field and long-term atmosphere persistance. Mars lost its atmo because it’s small.
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Emmanuel Marcq retweeted
Max Fagin 🚀🔴🌐☄🌘@MaxFagin
9 Jul 2024
I encountered a delightful little astrodynamics proof last week when an astronaut casually stated it as a fact, and when I looked skeptical, he just smiled and said, "Check it yourself." Here's the statement: "It takes 2 hours to orbit at the surface of any object made of rock"
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Emmanuel Marcq retweeted
Gro-Tsen@gro_tsen
24 Jun 2024
En tant que Français et Canadien, je pense qu'il est nécessaire que je dise un mot au sujet du fait que les binationaux sont soudainement considérés comme suspects en France, presque des ennemis de l'intérieur. 🧵⤵️ •1/22
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Thanks #EPSC24 for reminding us on your submission portal that we are all mortal beings... Feature request: "Presenting author" and "Deceased" tick boxes should be mutually exclusive :-D
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Aurore boréale vue depuis Nantes ce soir.
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Emmanuel Marcq retweeted
Thomas Widemann@WidemannThomas
8 Feb 2024
Ever wanted to dive deep into the #EnVisionMission and all its details? Then have a look at the EnVision Study Definition Report, also known as the Redbook. bit.ly/EnVisionRedBook This 175-page comprehensive document has just been published with the EnVision adoption by @esa.
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Emmanuel Marcq retweeted
LIRA astro@LiraAstro
29 Jan 2024
La mission EnVision qui ira étudier la planète Vénus en 2031 a définitivement été adopté par @esa. @LesiaAstro @Obs_Paris est impliqué dans la fourniture des spectrographes VenSpec-U et VenSpec-M qui observeront la surface et l'atmosphère de Vénus en UV et en proche IR.
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Emmanuel Marcq retweeted
EnvisionVenus@envisionvenus
25 Jan 2024
It’s official, I have been adopted! Time to celebrate!
ESA Science
@esascience
25 Jan 2024
📢 @ESA adopts two ambitious space science missions: Venus voyager #EnVision and gravitational wave surfer #LISA. “These trailblazing missions will take us to the next level in two extraordinarily exciting areas of space science and keep European researchers at the forefront of these domains,” says ESA Director of Science @CGMundell The ‘adoption’ step recognises that the missions' concept and technology are sufficiently advanced, and gives the go-ahead to build the instruments and spacecraft. Both spacecraft are planned to launch with an #Ariane6
Illustration showing two black holes merging and creating ripples in the fabric of spacetime. Some galaxies are visible in the backrgound as well as a red triangle, meant to represent the position of the three LISA spacecraft and the laser beams that will travel between them.

ALT Illustration showing two black holes merging and creating ripples in the fabric of spacetime. Some galaxies are visible in the backrgound as well as a red triangle, meant to represent the position of the three LISA spacecraft and the laser beams that will travel between them.

Illustration showing the EnVision spacecraft on top of two partially overlappint images of Earth (left) and Venus (right). Credit: NASA / JAXA / ISAS / DARTS / Damia Bouic / VR2Planets

ALT Illustration showing the EnVision spacecraft on top of two partially overlappint images of Earth (left) and Venus (right). Credit: NASA / JAXA / ISAS / DARTS / Damia Bouic / VR2Planets

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Emmanuel Marcq retweeted
Dr. Jörn Helbert@Planetguy_Bln
25 Jan 2024
Best news to close the @envisionvenus VenSpec suite meeting at @MPSGoettingen ! ESA - We're heading for Venus: ESA approves EnVision esa.int/Science_Exploration/…

We're heading for Venus: ESA approves Envision

ESA’s next mission to Venus was officially ‘adopted’ today by the Agency’s Science Programme Committee. Envision will study Venus from its inner core to its outer atmosphere, giving important new...

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Emmanuel Marcq retweeted
Dr. Jörn Helbert@Planetguy_Bln
25 Jan 2024
Another great VenSpec suite face-to-face meeting. While we do most of our work remotely using collaborative tools, nothing beats a good discussion over coffee/tea/beer/water... So we keep our tradition of quarterly meetings. Thank you @MPSGoettingen for hosting us this week.
Max Planck Institute for Solar System Research@MPSGoettingen
23 Jan 2024
Kick-off of the #VenSpec Suite Meeting at #MPSGoettingen! Hope you enjoy a week of talks, discussions & more. VenSpec will travel to #Venus on @esa’s mission #EnVision to study the planet’s surface, clouds, atmosphere. @envisionvenus @DLR_en @latmos_ipsl @iaa_csic @BIRA_IASB
group photo of VenSpec team

ALT group photo of VenSpec team
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