Origins Theme News

23 January 2025

Press, Research

A New Perspective on the Age of Saturn’s Rings

A recent study, published in Nature Geoscience on December 16, 2024, reveals that Saturn's rings may be much older than previously thought.

09 January 2025

General public, Press, Research

The study of a meteorite provides insights into the early stages of solar system formation

A study led by researchers at the Institut de Physique du Globe de Paris (IPGP), published in the journal Science Advances on January 8, 2025, reveals...

31 October 2024

Press, Research

Highlight of the importance of CO2 in the degassing of helium in the magma oceans of young planets

Researchers at the IPGP and the University of Oslo have revealed that the loss of volatile elements during the degassing of a magma ocean, in particul...

25 September 2023

Press, Research

The evolution of the Earth's atmosphere studied using impact craters

An international team shows that rocks from the hydrothermal system formed following the impact of the Rochechouart asteroid around 200 million years ...

06 December 2022

Press, Research

The formation of planetary atmospheres less efficient than anticipated

Researchers from the IPGP - Université Paris Cité show that the degassing of volatiles at the surface of magmatic oceans is far from instantaneous.

06 December 2022

Awards and Distinctions, Press, Research

Édith Kubik receives the 2022 CNFGG PhD Award

Édith Kubik received the 2022 Geophysics Prize for her PhD "Elemental and stable isotopic fractionations of siderophile elements – Implications for th...

07 November 2022

General public, Press, Research

Solar system calcium isotopic composition deduced from Ryugu samples

Less than two years after the Japanese Hayabusa2 mission returned samples from asteroid Ryugu to Earth, new international studies are refining the pre...

26 October 2022

General public, Press, Research

Publication of the book "Les mondes de Saturne" (Saturn's worlds)

"Les mondes de Saturne", written by Sébastien Charnoz, Sandrine Vinatier, Sandrine Guerlet and Alice Le Gall, has just been published by Belin.

28 June 2022

Press, Research

Zinc isotope anomalies reveal accretion of outer solar system material during Earth formation

The question of the origin of volatile elements* present on Earth is fundamental to understanding the evolution of our planet. A study carried out at ...

12 January 2022

Press, Research

Formation of the solar system's first small bodies in two separate rings

The formation of small solar system bodies, such as asteroids and planetesimals, remains a mystery. While there's general agreement that their formati...

28 October 2021

Press, Research

Modelling the effect of variations in the Earth's orbit on climates and biomes during the major Eocene-Oligocene climate transition

By comparing the results of climate simulations from the Eocene and Oligocene eras, subjected to different configurations of the Earth's orbit, a stud...

20 September 2021

Press, Research

The crustal origin of certain mantle heterogeneities finally demonstrated

The composition of the Earth's mantle is partly determined by chemical and isotopic analyses of lavas from different tectonic contexts. While basalts ...