
Highlights
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A new day on Uranus
Using the aurora of Uranus as a celestial clock, a team led by Paris Observatory - PSL has tackled a decades-old problem: redefining the rotation speed of...

World Water Day... how about a look into space?
Every year, World Water Day reminds us how precious this resource is on our planet. But its story is not limited to Earth! Water also intrigues astronomers,...

Researchers discover hidden treasures in MeerKAT’s archive of observations
An international team of researchers, including scientists from Observatoire de Paris - PSL, Rhodes University’s Centre for Radio Astronomy Techniques and...

The mass of the Andromeda galaxy is revised downwards
Using the most sophisticated dynamical model of the Andromeda galaxy and of its past history, a team led by an astronomer from the LIRA at the Paris...

Have we discovered the smallest extra-solar planet?
Using pulsar timing techniques at the decimeter radio telescope of the Nançay Radio Observatory, an international team comprising researchers from CNRS,...

Gaia satellite ceases observations
January 15, 2025 marks the end of scientific observations by ESA’s Gaia satellite, after 3,827 days spent measuring... almost two billion objects in our...

CTAO becomes a European Research Infrastructure Consortium
Preparations for the Cherenkov Telescope Array Observatory (CTAO) reached a crucial milestone on January 7, 2025, when the European Commission awarded the...

Franco-Dutch team wins third SKAO Data Challenge
The international DOTSS-21 team, comprising researchers from France’s CNRS Terre & Univers (Observatoire de Paris, ENS) and the Netherlands (Kapteyn...

How to reveal the atmosphere of an exoplanet: the case of TRAPPIST-1 b
Recent observations highlight the challenges involved in confirming the presence of an atmosphere on an exoplanet from thermal emission data alone. Conducted...

Young stars discovered in spheroidal dwarf galaxies surrounding the Milky Way
Using data from ESA’s Gaia satellite and observations from ESO’s Very Large Telescope (VLT), a research team from CNRS Terre & Univers and Paris...