News
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News from the labs
Published on 28 October 2025
Radio bursts reveal small-scale magnetic arches on the star AD Leonis
An international team has recorded radio emission originating from a red dwarf star with unprecedented time resolution. Astronomers from Peking University in...
Exhibitions and information
Published on 21 October 2025
Exo4Edu: heading for implementation!
The European project Exo4Edu – Exoplanets for Education, selected by the ERASMUS+ program (2024–2027) and coordinated by the Paris Observatory – PSL, is...
Administrative news
Published on 17 October 2025
Rodolphe Le Targat receives the Del Duca 2025 grant
In 2025, the Simone and Cino Del Duca Foundation awarded the “Sciences of the Universe and their Applications” grant to Rodolphe Le Targat of the Laboratoire...
Highlights
Published on 10 October 2025
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...
Highlights
Published on 1 October 2025
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...
Highlights
Published on 29 September 2025
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...
Exhibitions and information
Published on 26 September 2025
Observatoire de Paris - PSL participates in Fête de la science 2025
Observatoire de Paris - PSL is participating in Fête de la science by opening its Meudon site to the public on Saturday, October 11, 2025. Choose from a...
Highlights
Published on 18 September 2025
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...
Press releases
Published on 16 September 2025
A mysterious gamma-ray burst, unlike any previously detected
A scientific team, including a CNRS researcher from the Paris Observatory - PSL, observed a gamma-ray burst that repeated several times over the course of a...
Highlights
Published on 18 August 2025
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...