The recent discovery of a binary system containing an extremely rare object, the most massive black hole (apart from SgrA*) ever detected in our Galaxy, calls into question the models for the formation of these bodies.
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04.24.2024
On our planet, everything is interconnected, from terrestrial and marine ecosystems and biodiversity to ice sheets, rivers and oceans. But a recent report reveals that the dynamics of these different systems is being destabilised by human activities to such...
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04.18.2024
Research on tinnitus, a recent investigative field, is now enabling a clearer understanding of the causes and effects of this symptom that affects nearly eight million people in France.
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04.14.2024
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11.24.2022
Launched in 2016, the MICROSCOPE satellite has confirmed with unprecedented precision the equivalence principle, which lies at the heart of Einstein's general theory of relativity. Two...
11.21.2022
For the first time, a physical model consistent with observations successfully describes how the tidal force caused by the gravitational pull of the Moon is slowing down the rotation of our planet...
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10.30.2022
The astrophysicist Jean-Luc Atteia explains why the exceptional gamma-ray burst detected in early October could dramatically change what we know about supernovae and black holes.
10.02.2022
Polar auroras are fascinating events that are regularly visible on Earth. Yet do they occur on other planets, such as Mars for example? And if so, how can they be observed? In this report,...
Article
08.26.2022
It's off to the Moon. 29 August was to mark the beginning of the Artemis space programme. These lunar exploration missions should lead to the return of a human crew to the Moon by 2027. The goal...
Article
07.06.2022
Today the American (NASA), European (ESA), and Canadian (CSA) space agencies released the first colour images and spectroscopic data from the James Webb Space Telescope (JWST). Coordinator of one of...
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06.23.2022
The aim of several scientists is to trace the changes of a comet during its journey through the Solar System by reproducing the thermal and light characteristics of the cosmos in the laboratory....
Article
05.12.2022
Scientists were aware there was a huge object hidden at the centre of the Milky Way, and they also knew it had no hair. The EHT collaboration has now obtained the very first image of Sagittarius A*,...
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05.09.2022
Based on observations by the European Southern Observatory's Very Large Telescope, a team of astronomers has discovered a new type of stellar explosion. A million times less powerful than novae...
Article
10.26.2021
After a series of delays, the James Webb Space Telescope is at last scheduled for launch on 25 December. Its instruments have been designed to observe the most distant objects in the Universe.
10.11.2021
Higher-performance, lighter, cleaner... Scientists are using every possible means to improve the systems that allow rockets, shuttles, and satellites to take off from Earth and move about in space.
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10.07.2021
The first published data from the Perseverance rover shows that there was a large, deep lake on Mars 3.6 billion years ago, and that it was swept away by a climate upheaval.