The James Webb Space Telescope has produced a new portrait of the atmosphere of exoplanet WASP-39b, a "hot Saturn" some 700 light-years away.

To unravel this mystery, several teams with diverse skills from the Astrophysics Department had to come together, as the architecture that unites the star to its planet is highly complex.

Antoine Strugarek, an astrophysicist in Irfu's Astrophysics Department, has been awarded an ERC Consolidator contract.

The consortium of laboratories that has developed the MIRI instrument for the JWST is benefiting from guaranteed observation time.

For the 17th edition of the Prix Jeunes Talents France, the L'Oréal Foundation rewarded 35 brilliant young female researchers in France, selected from 618 eligible applications by a jury of excellence comprising 32 researchers from the French Academy of Sciences.

Using the James Webb Space Telescope, a group of astronomers led by MPIA, in collaboration with a team from the Astrophysics Department of CEA Paris-Saclay, searched for an atmosphere on the rocky exoplanet TRAPPIST-1 c.

Discovered in 2009, exoplanet GJ1214b orbits a small star just 40 light-years away. With a mass around six times that of Earth and an atmosphere made up of hydrogen and helium, it is considered a "mini-Neptune".

An international team of researchers has used NASA's James Webb Space Telescope to measure the temperature of the rocky exoplanet TRAPPIST-1 b.

The four principal investigators receive almost 10 million euros for their project 4D-STAR, which will develop and deliver innovative numerical models of rotating magnetic stars in three spatial dimensions throughout their evolution.

The LISA (Laser Interferometer Space Antenna) space mission by ESA and NASA, will observe gravitational waves from space.

As part of the Solar Orbiter science support activities and in conjunction with the ERC Synergy WholeSun grant, researchers from CEA Paris-Saclay, together with an international collaboration, have developed advanced numerical simulations to study the formation of structures of the solar wind.

The dawn of a new era in astronomy has begun as the world discovers for the first time the full capabilities of the NASA/ESA/CSA James Webb Space Telescope.

Archival observations of 25 hot Jupiters by the NASA/ESA Hubble Space Telescope have been analysed by an international team of astronomers, enabling them to answer five open questions important to our understanding of exoplanet atmospheres.

The Solar Orbiter mission, launched on February 10, 2020 from Cape Canaveral has already traveled more than 2 billion km. Since its passage just 470 km above the Earth in November 2021, the science mission has officially begun.

ESA's PLATO mission has been given the green light to continue its development after a successful critical review on January 11, 2022.

In the world of extrasolar planets, "GJ 367 b" is a featherweight. With half the mass of Earth, the newly discovered planet is one of the lightest of the nearly 5,000 exoplanets known today.

Planets that are strongly irradiated by their host stars develop extended atmospheres that can be probed during transits.

An international collaboration led by a team from the Astrophysics Department/AIM Laboratory of IRFU has predicted and characterised the expected signature of internal magnetic fields in stars through their seismology - called asteroseismology.

An international team including researchers from the Astrophysics Department (DAp) of CEA/Irfu, working in particular at the laboratory for the Dynamics of Stars, (Exo) planets and their Environment  (LDE3), has been able to demonstrate that stars rotate faster than expected as they get older.

The 2021 MERAC Prize for the Best Early Career Researcher in Theoretical Astrophysics is awarded to Dr Antoine Strugarek (CEA Saclay, France) for ground- breaking contributions in stellar astrophysics, including dynamo theory, predictions of solar flares and pioneering work on star-exoplanet interactions.

On May 18th 2020, ESO formally closed the preliminary design review of the ELT/METIS thermal infrared instrument.

ν Indi is a bright star (visual magnitude mv = 5.3) visible with the naked-eye from the southern hemisphere.

After the Horizon 2000 programme started in 1983, followed by its extension Horizon 2000 Plus, the European Space Agency (ESA) is committed until 2035 into the Cosmic Vision programme that includes the launches of Athena (2031) and LISA (2034).

Lisa Bugnet is one of 35 young women researchers who won the L'Oréal-Unesco Fellowships for Women in Science in 2019.

The recent detections of gravitational waves, tiny vibrations of space-time, have opened a new window in the observation of the Universe.

The first comprehensive planetary search campaign around the nearest star Alpha Centauri A has just been performed on the VLT telescope of the Southern European Observatory (ESO) using the NEAR infrared instrument (Near Earths in the AlphaCen Region).

An international collaboration, involving the Astrophysics Department-Laboratory AIM of CEA irfu, participated in the study of an exoplanetary system, Kepler-107 and revealed an amazing distribution of its 4 planets of which two seem potentially resulting from a giant impact.

A large part of the exoplanets known today are in very close orbit around their star, allowing very intense interactions between the planets and the host star.

By analyzing more than 16 years of data collected by the GOLF instrument onboard the SOHO satellite, an international collaboration involving two researchers from the Department of Astrophysics-Laboratory AIM of CEA-IRFU has demonstrated a rapid rotation of heart of the sun.

Thanks to new numerical simulations, a scientific team led by researchers from the Astrophysics Department-Laboratory AIM of CEA-Irfu has succeeded in explaining why the magnetic field of the Sun reverses every 11 years.