The Ramses mission to asteroid Apophis is set to launch in 2028. It forms the cornerstone of a planetary defence programme designed to protect our planet from the risk of collision with near-Earth objects.

The international crisis over Greenland has highlighted the wealth of the Far North's underground resources, but at the same time obscured the role of its inhabitants in their extraction. All around the Arctic Circle, indigenous peoples are taking action to gain control over the mining boom in their lands.

In the face of the climate emergency, techniques for removing CO₂ dissolved in seawater have raised some hopes and much concern. How to proceed? What rules should be established? Who should be in charge? The CNRS biogeochemist Olivier Sulpis, who is tasked with assessing these methods, provides an insight.

In 2015, the historic Paris Agreement, signed by 195 countries, sought to limit global warming to 2 °C. Ten years later, the results have yet to materialise, raising questions regarding the effectiveness of COP meetings, major climate gatherings whose latest edition recently took place in Brazil.

In 2015, the historic Paris Agreement, signed by 195 countries, sought to limit global warming to 2 °C. Ten years later, the results have yet to materialize, raising questions regarding the effectiveness of COP meetings, major climate gatherings whose thirtieth edition kicks off Monday in Brazil.

The huge fires that burn down millions of hectares of forest in North America every year have an impact on the other side of the Atlantic. Plumes of smoke and various other pollutants have been detected in the skies over France and beyond, explains the atmospheric scientist Stéphane Sauvage.

A name frequently associated with plate tectonics is that of the German meteorologist Alfred Wegener. However, another one would deserve recognition: that of the American cartographer Marie Tharp, who made a major contribution to the development of the theory that revolutionised the Earth sciences.