Highlights
Page 1 - results 1 to 10
Discovery of a ring system in formation around the Centaur object Chiron
An international team involving French researchers from Paris Observatory – PSL, Sorbonne University, and the CNRS, has discovered a ring system in formation...
Anniversary: 10 years since the first detection of a gravitational wave
A few tenths of a second, ten years ago, were enough to open up a new field of astronomy: gravitational waves. The Paris Observatory - PSL has played its...
An occultation by Ganymede on October 14, 2025
A rare event will take place on the night of October 13 to 14, 2025: Ganymede, Jupiter’s third moon, will occult a star of magnitude 7. The phenomenon will...
Gamma-ray astronomy: construction begins on 12 telescopes for the CTAO
The Paris-PSL Observatory and the CNRS have enabled the international Cherenkov Telescope Array Observatory (CTAO) project to reach a key milestone with the...
Complete characterization of asteroid 2023 CX1: a unique case study for planetary defense
A large international collaboration, bringing together nearly 100 researchers from around the world and led by Auriane Égal (Paris Observatory / Montreal...
The total lunar eclipse of 7 September 2025
On Sunday, September 7, 2025, there will be a total lunar eclipse, which will be partially visible in mainland France, where it is expected to reach its peak...
AstroGeoFit revolutionizes the reading of Earth’s deep time
A major innovation that links celestial rhythms and sediments to unlock the secrets of ancient climate.
A planet orbiting the closest twin star to the Sun?
Using the Webb Space Telescope, an international team of scientists, including astrophysicists from the Paris Observatory – PSL, is gathering observations on...
A groundbreaking technical advance with unprecedented support from artificial intelligence
Phase B1 of MOSAIC marked a key milestone: the validation of the instrument’s system architecture, which is consistent and fully meets the scientific...
The James Webb telescope discovers its first exoplanet
A team led by a CNRS researcher from Observatoire de Paris - PSL has just enabled the James Webb Space Telescope to make its first direct imaging discovery...