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  1. Why is there so little water left on Mars?

    Date de publication:

    24 Juin 2021

    Mars is known for its thin atmosphere, where CO2 dominates and provides most of the atmospheric mass and pressure. In fact, the pressure is similar to that in the Earth’s stratosphere, which is a layer of the atmosphere, at more than 30km above the surface.

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  2. What do we know about Mars’ interior?

    Date de publication:

    26 Novembre 2018

    The first missions to reach the surface of Mars date back 40 years, but many mysteries still lie beneath its top layer of iron oxide. To delve deeper into the red planet, the InSight lander is carrying a system able to drill down to five metres and sound Mars’ surface over a radius of thousands of kilometres. Following its arrival on Mars, we talk about what we already know and what we hope to discover there with CNES’s Francis Rocard, head of Solar System Exploration programmes, and Philippe Laudet, SEIS project leader for InSight and head of the agency’s Astronomy and Astrophysics programme.

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  4. Triton’s atmosphere in the starlight

    Date de publication:

    27 Mars 2018

    A campaign led by astrophysicist Bruno Sicardy used a very rare alignment between the Earth, the largest moon of Neptune and a star to analyse the atmosphere of Triton. It is a big first, the coordinates provided by the GAIA orbital telescope set up the observation points.

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  5. PILOT maps the Milky Way’s magnetic field

    Date de publication:

    15 Novembre 2017

    The black hole at the centre of our galaxy is surrounded by a very dense loop of gas and dust. This loop’s magnetic field has now been revealed by PILOT, a stratospheric balloon-borne experiment being conducted by CNES and the IRAP astrophysics and planetology research institute.

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  6. A living fossil left over from the early day of the Milky Way?

    Date de publication:

    4 Octobre 2017

    Astronomers have discovered possible rare fossil relics of the early Milky Way with chemical anomalies never-before-seen in our Galaxy

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  7. Second PILOT flight in Australia: smooth lift-off and landing for a 33 hours and 40 minutes flight

    Date de publication:

    11 Mai 2017

    The conclusion of an epic human, technical and scientific adventure in Australia, riddled with challenges and rewarded with success!

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  8. Green light to build NISP instrument!

    Date de publication:

    23 Novembre 2016

    The infrared spectro-photometer of Euclid mission successfully passed its critical design review (CDR).

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  9. JWST France workshop at IAP on November 8, 9 and 10 2016

    Date de publication:

    14 Octobre 2016

    Following the JWST-France workshop that took place on May 27, 2016 in CNES Paris, and to pursue the preparation of the community to these different calls, 3 themed workshops and 1 "tools" workshop are organised.

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  10. Strong magnetic fields discovered in majority of medium-mass stars

    Date de publication:

    21 Janvier 2016

    An international collaboration, involving the Astrophysics Department-AIM Laboratory of CEA-IRFU, managed to determine, from asteroseismology, that up to 65% of stars more massive than the Sun (between 1.6 and 2 solar masses) have a very high internal magnetic field.

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  11. Surveying the extragalactic Universe

    Date de publication:

    15 Décembre 2015

    A collaboration of international research teams has published a new 3D map of galaxy clusters compiled from observations of two regions of the sky each covering 25 square degrees, roughly 200 times the surface area of a full Moon—a mine of information for astrophysicists.

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  12. Successful mechanical tests of the NISP instrument

    Date de publication:

    23 Mai 2016

    The mechanical tests of the NISP instrument structural model (Near Infrared Spectrometer Photometer) took place at the CSL (Centre Spatial de Liège, Belgium) from April 18th to 28th, 2016.

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  13. Bubbles and Filaments at the Heart of the Milky Way

    Date de publication:

    19 Août 2015

    From the analysis of all available data collected by the satellite XMM-Newton in the range of the X-rays, an international team has established the most detailed map of the hot gas of the central region of the Galaxy.

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  14. Detection of the first extragalactic gamma-ray pulsar

    Date de publication:

    19 Novembre 2015

    It is the most luminous gamma-ray pulsar ever observed that has been detected by two scientists from LPC2E (Laboratoire de physique et chimie de l'environnement et de l'espace, CNRS/Orleans University) and from IRAP (Institut de recherche en astrophysique et planétologie, CNRS/Université Toulouse III – Paul Sabatier), with their American colleagues from NASA in an international collaboration.

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  15. JWST instruments are coming in from the cold

    Date de publication:

    4 Février 2016

    After being tested at extremely low temperatures for more than two months, the four instruments of the James Webb Space Telescope are preparing to come in from the cold.

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  16. Euclid construction authorized!

    Date de publication:

    21 Décembre 2015

    Euclid, ESA's dark Universe mission, has passed its preliminary design review, providing confidence that the spacecraft and its payload can be built. Dedicated to dark energy, the mission successfully passed the key point which consolidates and validates the scientific performances of the mission. The construction of the first elements of the space telescope and its payload can now begin.

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