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Webb Telescope Detects Thick Atmosphere Around Broiling Lava World
December 11 2025

Webb Telescope Detects Thick Atmosphere Around Broiling Lava World

Observations of the ultra-hot super-Earth exoplanet TOI-561 b show the strongest evidence yet for an…

2025
Webb Telescope Reveals Double Helium Tails Escaping from a Hot Jupiter
December 8 2025

Webb Telescope Reveals Double Helium Tails Escaping from a Hot Jupiter

Astronomers from the Trottier Institute for Research on Exoplanets (IREx) at the Université de Montréal…

2025
Exoplanet Caught Shedding Its Atmosphere in Real Time 
December 1 2025

Exoplanet Caught Shedding Its Atmosphere in Real Time 

Using the James Webb Space Telescope (JWST), a team led by McGill researcher Vigneshwaran Krishnamurthy…

2025
Mathis Bouffard recipient of the 2025 Hubert-Reeves grant
November 26 2025

Mathis Bouffard recipient of the 2025 Hubert-Reeves grant

IREx is proud to announce that Mathis Bouffard, M.Sc. student in astrophysics at the Université…

2025
IREx-led team maps ‘weather’ on a nearby brown dwarf in unprecedented detail
November 7 2025

IREx-led team maps ‘weather’ on a nearby brown dwarf in unprecedented detail

Study reveals patchy clouds and shifting atmospheric layers on a free-floating planetary-mass object just 20…

2025
My time at IREx: Charles Cadieux
October 27 2025

My time at IREx: Charles Cadieux

Charles Cadieux joined IREx in 2018 as a Master’s student. After completing his doctoral studies,…

2025
A Dead Star Reveals the Swallowed Remains of Its Planetary System
October 22 2025

A Dead Star Reveals the Swallowed Remains of Its Planetary System

An international team led by Érika Le Bourdais, a PhD student at the Université de…

2025
Lookback at our 2025 summer internships
September 15 2025

Lookback at our 2025 summer internships

Another summer full of discoveries has come to an end! As every year, we had…

2025
My thesis in 400 words: Pierre-Alexis Roy
September 12 2025

My thesis in 400 words: Pierre-Alexis Roy

Pierre-Alexis Roy, a student at IREx, completed his PhD at Université de Montréal in August…

2025
My thesis in 400 words: Salma Salhi
September 12 2025

My thesis in 400 words: Salma Salhi

Salma Salhi, an MSc student at IREx, recently completed her degree at the Université de…

2025
My Thesis in 400 words: Pierrot Lamontagne
September 12 2025

My Thesis in 400 words: Pierrot Lamontagne

Pierrot Lamontagne, a student at IREx, recently completed his Master’s degree at Université de Montréal.…

2025
A rare molecule detected in a peculiar brown dwarf – Interview with Jonathan Gagné
September 9 2025

A rare molecule detected in a peculiar brown dwarf – Interview with Jonathan Gagné

Several brown dwarfs, these celestial objects with masses between stars and planets, are currently being…

Scientific Interviews