ESA’s groundbreaking Biomass satellite, designed to provide unprecedented insights into the world’s forests and their crucial role in Earth’s carbon cycle, has been launched. The satellite lifted off aboard a Vega-C rocket from Europe’s Spaceport in Kourou, French Guiana, on 29 April at 11:15 CEST (06:15 local time).

ESA’s state-of-the-art Biomass satellite has launched aboard a Vega-C rocket from Europe’s Spaceport in French Guiana. The rocket lifted off on 29 April 2025 at 11:15 CEST (06:15 local time).

In orbit, this latest Earth Explorer mission will provide vital insights into the health and dynamics of the world’s forests, revealing how they are changing over time and, critically, enhancing our understanding of their role in the global carbon cycle. It is the first satellite to carry a fully polarimetric P-band synthetic aperture radar for interferometric imaging. Thanks to the long wavelength of P-band, around 70 cm, the

ESA project astronaut Sławosz Uznański-Wiśniewski will conduct a variety of science experiments and technology demonstrations during the Ignis mission. While the International Space Station is a home away from Earth for astronauts, it is, above all, a state-of-the-art laboratory in orbit. Its unique microgravity environment allows researchers to study phenomena that are impossible to replicate on our planet. 

The Atomic Clock Ensemble in Space (ACES), ESA’s state-of-the-art timekeeping facility, is now installed on the Columbus laboratory of the International Space Station. This still image, captured by external cameras on the Station, shows ACES after installation. For 25 years, cameras on the Station have documented activities in orbit, providing real-time views of operations like this one – a rare and remarkable perspective from space. 

On 25 April, the Canadian Space Agency’s robotic arm carefully extracted ACES from the SpaceX Dragon trunk and secured it onto the Columbus External Payload Facility, next to ESA’s space storm hunter ASIM

ESA’s Biomass satellite has been at Europe’s Spaceport in French Guiana since early March, undergoing final preparations for launch aboard a Vega-C rocket. This timelapse video captures key stages of its journey — from its arrival in Kourou to its installation in the launch tower.

Once in orbit, this latest Earth Explorer mission will provide vital insights into the health and dynamics of the world’s forests, revealing how they are changing over time and, critically, enhancing our understanding of their role in the global carbon cycle.

After years of careful design and preparation, ESA’s Earth Explorer Biomass satellite is set for launch tomorrow, 29 April at 11:15 CEST, aboard a Vega-C rocket from Europe’s Spaceport in French Guiana.

This groundbreaking mission will offer unprecedented insights into the state and evolution of the world’s forests. By mapping the woody material in Earth’s forests, this revolutionary satellite will play a crucial role in deepening our understanding of how forests influence the global carbon cycle.

On 19 April 2025, ESA marks the 21st anniversary of KUBIK, an incubator for biological samples in space. This versatile and enduring facility has advanced our understanding of biology in space for the last two decades.