Current research
Page 1 - results 1 to 10
Highlights
Published on 29 October 2025
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...
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...
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...
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...
Highlights
Published on 11 August 2025
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.
Highlights
Published on 8 August 2025
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...