ISA (Laser Interferometer Space Antenna), the European Space Agency's large-scale mission to explore the Universe by observing the many sources of gravitational waves, was adopted on Thursday January 25 by ESA's Scientific Programs Committee, meaning that the concept and technology are recognized as sufficiently advanced for construction of the instrument and satellites to begin.

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.

On November 8, 2023, ESA's Science Program Committee (SPC) approved the evolution of the Athena (Advanced Telescope for High-Energy Astrophysics) mission, now named NewAthena, and confirmed its status as the flagship mission of ESA's Cosmic Vision program.

Barbara Perri, an astrophysicist at Irfu's Astrophysics Department and an expert in space weather, has been awarded an ANR contract for the WindTRUST project, which aims to predict solar activity in order to protect against it.

An international team led by French researchers, including those at DAp, publishes on November 28, 2023 in the Astrophysical Journal a compilation of 340 pulsars seen in gamma rays (30 MeV - 30 GeV) with the LAT space telescope on NASA's Fermi satellite.

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.

ESA has selected the THESEUS (Transient High Energy Sky and Early Universe Surveyor) mission as a medium-sized mission candidate.

To reveal the influence of the dark components of the Universe, over the next six years Euclid will be observing the shapes, distances and movements of billions of galaxies.

An international team of scientists, including a researcher from Irfu's Astrophysics Department, used several space and ground-based telescopes, including the James Webb Space Telescope and the European Southern Observatory's Very Large Telescope, to observe an exceptionally bright gamma-ray burst detected on March 7, 2023, GRB 230307A, and identify the neutron star merger that generated the explosion responsible for the burst.

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.

Fermi-LAT telescope continues systematic γ-ray survey NASA's Fermi satellite was launched in June 2008, and the Fermi-LAT telescope has been carrying out a systematic γ-ray survey of near-GeV energies covering most of the sky every 3 hours (and the whole sky in no more than a week) since August 2008.

The Euclid satellite, launched from Cape Canaveral on July 1st, is traveling to reach its orbit at the second Lagrange point, which it should reach in early August.

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.

On October 9, 2022, at 13:16 and 59.99 seconds, a gamma-ray burst (GRB) dazzled almost all the X-ray and gamma ray detectors available at the time.

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".

The European Research Council has just announced the names of the winners of the Advanced Grant.

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

Magnetars are neutron stars known for their wide variety of electromagnetic emissions coming from the dissipation of their extreme magnetic fields, which are the strongest known in the Universe and can reach 1015 Gauss, or 10 billion times that of the strongest magnet created by humans.

CEA has delivered to CNES the flight version of the ECLAIRs instrument software for the SVOM satellite.

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.

For the first time since the XMM launch (1999), a cosmological analysis constraining the density of matter in the universe, from a catalog of 178 galaxy clusters detected by XMM, has been possible and in an autonomous way, i.e.

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 origin of Galactic cosmic rays, their energy source and their acceleration process raise many questions more than 100 years after their discovery by Victor Hess in 1912.

Nine months after its launch, the James Webb Space Telescope provides unprecedented images of an exoplanet, the first ever obtained in the mid-infrared. These images should revolutionize our knowledge of extrasolar worlds.

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.

Understanding the star formation process is a major open question in contemporary astrophysics.

Scientists from the CosmoStat laboratory at CEA have produced within the international science collaboration UNIONS (Ultraviolet Near Infrared Optical Northern Survey) a reference catalogue of 100 million gravitationally lensed distant galaxies, one of the largest datasets ever created.