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18 February 2020

Journées européennes du patrimoine

Du 15 septembre 2012 au 16 septembre 2012 De 14h00 à 18h00 Observatoire & Planétarium Journées européennes du patrimoine 2012 L'Observatoire astronomique et le Planétarium de Strasbourg participent aux Journées européennes du Patrimoine, samedi 15 et dimanche 16...

18 February 2020

Les 22èmes Nuits des étoiles

Du 10 août 2012 au 12 août 2012 De 20h00 à 01h00 Planétarium (nuit du 10 au 11) & Ciné de Bussierre (nuit du 11 au 12) Célébrez avec nous les "22èmes Nuits des étoiles" Le vendredi 10 aout 2012 au PLANÉTARIUM, de 20h à 1h du matin Le samedi 11 aout 2012 au CINE DE...

7 February 2020

Galaxy formation simulated without dark matter

Feb 11 2020 The distribution of matter 1.5 billion years after the start of the simulation. The lighter the color, the higher the density of the gas. The light blue dots show young stars. © AG Kroupa/Uni Bonn A study by the University of Bonn simulates a universe in which Newton's laws are...

9 January 2020

Discovery of a large HI ring around the quiescent galaxy AGC 203001

Jan 15 2020 Blue contours correspond to the neutral hygrogen ring, overlaid on an optical color composite image obtained at CFHT in g-, r- and i-band. Bait et al. report the discovery using the Giant Metrewave Radio Telescope of an extremely large (diameter approximately 115 kpc)...

6 December 2019

A dark matter-like effect in globular clusters, Gaia finds out

Dec 6 2019 The large field-of-view Gaia observations of NGC 3201 allow us to measure the velocity dispersion in the outskirts of the cluster, which appears significantly higher (red dots in top right panel) than what expected from standard Newtonian dynamics (bottom right panel). This...

26 November 2019

Giant Magnetic Ropes in a Galaxy’s Halo

Nov 26 2019 Composite image by Jayanne English of the University of Manitoba, with NRAO VLA radio data from Silvia Carolina Mora-Partiarroyo and Marita Krause of the Max-Planck Institute for Radioastronomy. The observations are part of the project Continuum HAlos in Nearby Galaxies --...

18 November 2019

The first billion year of the Universe in a gigantic simulation

Nov 18 2019 Left: temporal frieze (time flows to the right) showing the evolution of the ionization state of the Universe during the first billion years of the Universe. The box spans about 350 million light years on a side. The blue color indicates photo-ionized warm gas, the red shows warmer...