Communiqués de presse de 2019
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The dynamics of dwarf galaxies re-explained without black matter
For long attributed to the presence of dark matter, the properties of dwarf galaxies in the neighborhood of the Milky Way can be understood just by tidal...
A second planet in the Beta Pictoris system
A team of astronomers led by Anne-Marie Lagrange, a CNRS researcher at the Institut de Planétologie et d’Astrophysique de Grenoble (CNRS/Université Grenoble...
Laser Moon telemetry sheds light on the internal structure of the Moon
Using Laser-Moon telemetry data, the longest experience of the Apollo era, a team from Paris Observatory and Observatory of the Côte d’Azur (OCA) manages to...
A new radio telescope, NenuFAR enters into scientific exploitation
The NenuFAR radio telescope, the result of a collaboration between Observatoire de Paris - PSL, the University of Orléans and CNRS, started being deployed in...
Saturn’s moon Mimas, a snowplough in the planet’s rings
The Solar System’s second largest planet both in mass and size, Saturn is best known for its rings. These are divided by a wide band, the Cassini Division,...
When geology reveals the ancient solar system
Because of the chaotic nature of the Solar System, astronomers believed till now that it would be impossible to compute planetary positions and orbits beyond...
Publication of a new sky map containing thousands of galaxies unknown till now
Thanks to the LowFrequency Array (LOFAR) radiotelescope, an international team of scientists including astronomers at the Paris Observatory - PSL and the...