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This artistic representation of the TRAPPIST-1 red dwarf star showcases its very active nature. The star appears to have many stellar spots (colder regions of its surface, similar to sunspots) and flares. The exoplanet TRAPPIST-1 b, the closest planet to the system’s central star, can be seen in the foreground with no apparent atmosphere. The exoplanet TRAPPIST-1 g, one of the planets in the system’s habitable zone, can be seen in the background to the right of the star. The TRAPPIST-1 system contains seven Earth-sized exoplanets.

Science

New insights into the atmosphere and star of an exoplanet

25 September 2023

Press release

The ultra-hot giant exoplanet WASP-76 b, depicted here, is an extremely hot world orbiting very close to its giant star.

Science

A scorching-hot exoplanet scrutinized by UdeM astronomers

14 June 2023

Press release

There’s an intriguing exoplanet out there – 400 light-years out there – that is so tantalising that astronomers have been studying it since its discovery in 2009. One orbit for WASP-18 b around its star that is slightly larger than our Sun takes just 23 hours.

Science

Canadian NIRISS instrument on Webb Maps an Ultra-Hot Jupiter’s Atmosphere

31 May 2023

Press release

René Doyon

Community

René Doyon receives prestigious NASA Medal

26 May 2023

Press release

LP 791-18 d, illustrated here, is an Earth-size world about 86 light-years away. The gravitational tug from a more massive planet in the system, shown as a blue dot in the background, may result in internal heating and volcanic eruptions on this exoplanet – as much as Jupiter’s moon Io, the most geologically active body in the Solar System.

Science

Found: a likely volcano-covered terrestrial world outside the Solar System

17 May 2023

Press release

Science

In one year, southern Quebec will witness a total eclipse of the Sun

5 April 2023

Press release

From left to right: Sophie-Andrée Blondin, René Doyon and Charles Tisseyre.

Community

René Doyon: A scientific star with both feet firmly planted on the ground

29 January 2023

Article

Artistic representation of the planetary system of the star Kepler-138. We see Kepler-138 d in the foreground, and closer to the star, Kepler-138 c. These two planets are probably composed mainly of water. The small planet Kepler-138 b is seen transiting in front of the star. A fourth planet, Kepler-138 e, is further away and not visible in the image.

Science

Université de Montréal astronomers find that two exoplanets may be mostly water

15 December 2022

Press release

New observations of WASP-39b with the JWST have provided a clearer picture of the exoplanet, showing the presence of sodium, potassium, water, carbon dioxide, carbon monoxide and sulfur dioxide in the planet's atmosphere. This artist's illustration also displays newly detected patches of clouds scattered across the planet.

Science

An exoplanet atmosphere as never seen before

22 November 2022

Press release

Science

$26 million to propel space research at McGill and UdeM to the outer limits

21 November 2022

Press release

From left to right: Marie-Eve Naud, Frédérique Baron and Nathalie Ouellette.

Community

Three astrophysicists promoting science through iREx

21 November 2022

Article

Science

iREx making major contribution to astronomy

21 November 2022

Article

Jonathan Gagné et Myriam Prasow-Émond

Community

Where are they now after their time at iREx?

21 November 2022

Article

Illustration showing what the exoplanet WASP-39 b could look like, based on current understanding of the planet.

Science

Signs of CO2 in a planet beyond our solar system

25 August 2022

Press release

Artistic rendition of the exoplanet TOI-1452 b, a small planet that may be entirely covered in a deep ocean.

Science

An extrasolar world covered in water?

24 August 2022

Press release

Science

Cooperative molecular networks may have been the spark of life on other planets

13 May 2022

Article

Science

James Webb Space Telescope: beginning to see the light

6 April 2022

Press release

Culture

UdeM grad is Leonardo DiCaprio’s hand double in Don’t Look Up

18 January 2022

Article

Science

Three videos ahead of the James Webb Space Telescope launch

20 December 2021

Article

Science

The James Webb telescope: part alien life detector, part time machine

9 December 2021

Article

Nathalie Ouellette, coordinator of the Exoplanet Research Institute at the Université de Montréal, and Olivia Lim, a doctoral student at the Université de Montréal.

Science

Women helped make the James Webb Space Telescope a reality

3 December 2021

Article

The James Webb Space Telescope will become the most important observatory for thousands of astronomers around the world.

Science

James Webb Space Telescope: our experts speak out

24 November 2021

Article

Artist's rendition of the James Webb Space Telescope. (Source: NASA)

Science

Three UdeM astophysicists to help inaugurate the James Webb Space Telescope

28 October 2021

Press release

Artistic representation of the exoplanet Tau Boötis b and its host star, Tau Boötis

Science

A hot and dry Jupiter: SPIRou reveals the atmosphere of the exoplanet Tau Boötis b

28 July 2021

Press release

Science

A rare solar eclipse on the morning of June 10

1 June 2021

Press release

Science

Astronomy: unraveling a spiral stream of dusty embers

16 September 2020

Press release

Artist’s representation of the planet (foreground) and its star (background).

Science

Discovering an exoplanet the size of Neptune

25 June 2020

Press release

An artistic representation of the exoplanet K2-18b.

Science

Water detected on an exoplanet located in its star’s habitable zone

11 September 2019

Press release

(L) A view of Eta Carinae by NASA's Hubble Space Telescope in 2000. (R) What the star could look like in 2032, when it overshadows its nebula.

Science

Goodbye to a beauty in the night sky

29 January 2019

Press release

Artist's depiction of the inside of a white dwarf. Credit: Mark A. Garlick, University of Warwick.

Science

Thousands of stars turning into crystals

9 January 2019

Press release

Faculty experts (fr)

In the media (fr)