Daniel Pomarède Cosmography archives Schematic decomposition of the dipole anisotropy into its principal components. by Marc Aaronson and co-authors (1986) ui.adsabs.harvard.edu/abs/1986ApJ.... #Cosmology 🧪
Cosmology
by @emily.space
A science-oriented feed about cosmology! Part of the Astronomy feeds network. Astronomers can sign up to post here via @bot.astronomy.blue Contains posts from signed up users with #cosmology. Posts here are also included in the main Astronomy feed.
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Daniel Pomarède 
Nereide At some 53 Mly, by the Virgo Cluster, sit galaxies whose surface light sits close to the sky level. Few stars, spread over a huge area. A study of Rubin LSST DP2 data reports 7 of them, around galaxy M49. Image: Fig. 1 of the paper. NSF–DOE Vera C. Rubin data (DP2). 🔭 🧪 ⚛️ #cosmology
Elizabeth Stanway Time for a new blog post! Today in Cosmic Stories we're looking at the other side of the dark sector: Dark Energy. Including work by Baxter, Landis, Brin, Niven and others. Comments always welcome! warwick.ac.uk/fac/sci/phys... #ScienceandSF #Physics #Cosmology
Nereide 14 September 2015 went down in #history. That is, in fact, the day the #LIGO researchers first detected a #gravitationalwave signal, formally named #GW150914. journals.aps.org/prl/abstract... #cosmology #histsci #blackholes 🔭 🧪 ⚛️
Nereide 🧵 Very dense stars, such as old millisecond pulsars and white dwarfs, could harbor a tiny #blackhole as massive as a truck. A new study does not assume it exists: it calculates what would follow if that seed could form.🔭🧪⚛️ phys.org/news/2026-09-black-hole-tons-star-dark.html #cosmology
Sesh Nadathur 1 / 2
A colleague went to the National Air and Space Museum in Washington DC which has a beautiful #cosmology exhibition on "Discovering Our Universe" featuring many telescopes, several historically important astronomers, and also ... me?! I'm described as a Cosmic Cartographer, which is awesome 🤩 🔭🧪
Daniel Pomarède 1 / 2
Cosmography archives Correspondence between Messier's Catalogue and Dreyer's New General Catalogue identifiers, with positions and descriptions, in a convenient tabular form. by Harlow Shapley and Helen Davis (1917) ui.adsabs.harvard.edu/abs/1917PASP... #Cosmology 🧪
ESA Space Science Congratulations!! #NASARoman on a successful launch 🚀 “ESA is proud to have provided essential hardware,” says Carole Mundell @esa.int 's Director of Science. Read more 👉 https://www.esa.int/ESA_Multimedia/Images/2026/08/Roman_lifts_off_on_a_mission_to_survey_the_infrared_sky 🔭🧪 #cosmology
ESA Space Science 🎧 Ever wondered what a black hole collision would sound like? Find out in the fourth episode of our Expedition Sound podcast! 🎙️ Join us as we travel into deep space to explore the mysterious effects of gravity we can observe with our space missions 👉 shorturl.at/UGpUc 🔭🧪 #cosmology #extragalactic
ESA Space Science T – 5️⃣ days to #NASARoman launch day Like ESA’s Euclid, Roman will study: ✔️dark matter ✔️dark energy & expansion of the Universe ✔️exoplanets Read more 👉 https://www.esa.int/Science_Exploration/Space_Science/Cutting-edge_infrared_space_telescope_Roman_set_to_launch 🔭🧪 #cosmology #exoplanets
Nereide 1/10 TON 618 is an enormous #quasar, a type of extremely luminous active galactic nucleus (AGN) at the center of a #galaxy.🔭 Its engine is one of the most massive black holes known. QSO 1228+3128 is one of its alternative designations.⚛️🧪 #cosmology #universe #astronomy
Nereide 1/8 A team, led by researchers at #MPE and the Paris Observatory/PSL, detected S301, the closest star around Sgr A*, the BH at the heart of our Galaxy. 🔭🧪 It orbits in 8.7 years and its peak velocity reaches about 25,000 km/s, so being faster than any known star in the Milky Way.⚛️ #cosmology
Nereide 1/12 The BGV theorem states that an expanding #universe cannot extend infinitely into the past: it must have had a beginning in time.🔭 But is it really that simple? A recent paper explores the link between this theorem and the energy conditions of general relativity.⚛️🧪 #cosmology #histsci
Nereide 1/8 In 2025, I reported the discovery of MoM-z14, the most distant galaxy confirmed spectroscopically, a result of the JWST "Mirage or Miracle" (MoM) program led by R. Naidu & collaborators.🔭⚛️🧪 They have just published another great result from the same program in Nature: MoM-BH*-1. #cosmology
Nereide 1/6 In a 2020 study, that remains solidly current, astronomers report they have found AT LEAST SIX GALAXIES in the cosmic web around the luminous #quasar SDSS J1030+0524, powered by a one billion solar mass black hole. 🔭🧪⚛️ www.eso.org/public/news/... #cosmology #astronomy #galaxies
Charles O. When we shave a tiny bit of our 4D continuum spacetime and use this fraction to do real work, we can preserve GR/Newtonian physics where they matter and avoid singularities. This simulation tracks compact objects from sub-solar to x10 stellar mass. #cosmology #GeneralRelativity #Astrophysics
Nereide 1/11 In late June 2026, a paper in Nature by Labini & Galoppo using data from the DESI project claimed to have found anisotropy (directional differences) in the #Universe on scales up to 1 gigaparsec (about 3.26 billion ly). 🔭 This would have challenged the standard ΛCDM model.⚛️ 🧪 #cosmology