Current research
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News from the labs
Published on 9 December 2025
SVOM detects signal from supernova dating back 13 billion years
SVOM begins its exploration of the distant universe: detection of a gamma-ray burst caused by a supernova that exploded 13 billion years ago. Researchers...
Highlights
Published on 2 December 2025
MOSAIC: the Paris-PSL Observatory at the heart of building the instruments for the future ELT
On December 1, 2025, ESO signed the agreement launching the design and construction of MOSAIC, the multi-object spectrograph for the Extremely Large...
Press releases
Published on 27 November 2025
Electric discharges detected on Mars for the first time
Electric discharges have for the first time been recorded within the storms and whirlwinds of dust – known as dust devils – that sweep across the surface of...
News from the labs
Published on 14 November 2025
Four laser stars herald a new era for interferometry at the VLT
In early November 2025, four lasers fired from each of the four large 8-metre telescopes at the European Southern Observatory (ESO) were used to create...
Press releases
Published on 12 November 2025
Evidence of a Massive Stellar Storm on a Nearby Star
An international team of astronomers, led by ASTRON (Netherlands Institute for Radio Astronomy) and the Observatoire de Paris-PSL, have observed the first...
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...