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Matter
The outstanding physicist Jacqueline Bloch is a specialist in polaritons, microscopic objects halfway between matter and light. She has just been awarded the CNRS Gold Medal, France’s highest scientific distinction. A portrait.
Article
09.17.2026
Many everyday objects contain PFAS, synthetic molecules that are virtually indestructible. These thousands of compounds are accumulating in both nature and our organisms. One avenue for eradicating them is bioremediation, which eliminates chemicals by using...
Slideshow
02.25.2026
In August 2025, the Geneva Summit on plastic pollution once again failed to reach agreement on an international treaty, due in particular to a lack of consensus over recycling and its limits. This issue was the subject of a recent collective scientific...
Article
10.27.2025
The early 20th-century artist Robert Delaunay began painting at a pivotal moment in art history, namely during the chemical industry revolution, when the number of pigments available on the market increased. Today scientists are trying to solve the mystery of...
Slideshow
07.17.2025
01.29.2025
Based in Namibia, the H.E.S.S. telescope array monitors the showers of particles produced when the highest-energy cosmic rays ever observed in the Universe impact the Earth's atmosphere.
Article
01.14.2025
Light, soft, resistant, deformable, and sometimes tacky, knitted fabric is not just an everyday object, it is also a metamaterial whose extraordinary properties are of great interest to physicists.
12.06.2024
Over 5 million years ago, the Mediterranean Sea dried up, giving way to a salt flat stretching as far as the eye could see. A look back at the Mediterranean basin’s last great hydrological crisis.