"Biomass is the first satellite to carry a P-band synthetic aperture radar, its signal capable of penetrating forest canopies to measure woody biomass—trunks, branches and stems. These measurements serve as a proxy for carbon storage, the assessment of which is the mission's primary objective."
https://phys.org/news/2025-06-biomass-satellite-images-forests.html?ref=fixthenews.com

Biomass satellite returns striking first images of forests and more
Today, at the Living Planet Symposium, ESA revealed the first stunning images from its Biomass satellite mission—marking a major leap forward in our ability to understand how Earth's forests are changing and exactly how they contribute to the global carbon cycle. But these inaugural glimpses go beyond forests. Remarkably, the satellite is already showing potential to unlock new insights into some of Earth's most extreme environments.