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The European Southern Observatory designs, builds & operates world-class observatories on the ground for the benefit of society.

#astrodon #astronomy #astrophysics #space #science

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IRAP : Institut de Recherche en Astrophysique et Planétologie.
Co-tutelles : Université Paul Sabatier de Toulouse, CNRS & CNES.
Effectif ~ 300 personnes (chercheurs, étudiants, ingénieurs, techniciens).
Mission : Etudier l'Univers depuis le centre de la Terre jusqu'aux confins de l'Espace.
Hashtags : #astronomy, #astrophysics, #planetology, #exoplanets, #cosmology, #space, #universe, #stars, #galaxies, #instrumentation, #modelization, #experimentation

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PhD candidate at Tartu Observatory on galactic dynamics #to #tartuobservatory.
Supervised by R. Kipper(TO) and mentored by E. Vasiliev(Univ. Surrey) through the streams24 program.

Former galaxies intern at @LAM_Marseille #LAM
#galaxies #galactic_interactions #evolution #dust #superbubbles #streams

Galaxies and forest trees.

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I’m an astrophysicist working in the field of gamma-ray astronomy at IRAP (CNRS) in Toulouse, France.
Since a couple of years I’m also doing research on the environmental impact of scientific research (and of astrophysics in particular), and I’m engaged in @labos1point5 and @a4e.
I’m also doing local politics as city and community councillor with a strong focus on environmental politics. Gearing up for #municipales2026.
Born at 320 ppm.

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Official Consortium of ESA's Euclid mission on the Universe's dark matter, energy & expansion, 15 European countries + USA + CAN + JAP, 2000+ scientists + engineers. Telescope successfully launched 1 July 2023 and now arrived at L2. Scientific surveys started 14 February 2024. First science data released!

","updated":"2025-08-05 16:45:53.851Z","user":"","username":"Euclid Consortium"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-08-05 16:45:53.947Z","domain":"mastodon.social","followerCount":0,"followers":"https://mastodon.social/users/sf2a/followers","following":"https://mastodon.social/users/sf2a/following","followingCount":0,"icon":"https://files.mastodon.social/accounts/avatars/113/978/707/677/599/925/original/7a9ee6a352596383.png","id":"971w0p8xi84p70t","inbox":"https://mastodon.social/users/sf2a/inbox","iri":"https://mastodon.social/users/sf2a","isLocal":false,"last_fetched":"2025-08-05 16:45:53.946Z","outbox":"https://mastodon.social/users/sf2a/outbox","preferred_username":"sf2a","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAkLF6Yom7z4izgcjsXiFR\nlNgz5OCyLLtzC/AvFs580CvwCnAnBa+4rTn8lO9HyOCs0g4isaEV09bcUh/cwHB4\nGaJoLezi9QjlpJ28y9c8KBADq5GqcdThzvbJ3PiIzdhutvWx8VHxeT4q3kkqWMhA\n4Mo3pp11VK4idHlMNbBUu+/4SiGtZK1WSZmR0eZRGLnENDVwTVbwqbe+eM8G7ncc\n8m2hfacaOg6oVzu6KHvIYgI2Vq7t+k4M4Ocs265ApulAn8sSyGGEUxN9nGEi/ZXv\nJDJpntL90kZZfrARB6RFGPXDt9T+KuN+zmVwlEmP8fk4z8tIfkipfAmOhrzfrBYV\nKQIDAQAB\n-----END PUBLIC KEY-----\n","published":"2025-02-10 00:00:00.000Z","summary":"

Compte officiel de la Société Française d'Astronomie et d'Astrophysique

","updated":"2025-08-05 16:45:53.947Z","user":"","username":"SF2A"}],"page":1,"perPage":10,"totalItems":88,"totalPages":9}

Samuel Boissier

Following