From Plant Fluorescence to Asteroids: Europe’s Space Highlights in July 2026

Europe used July to push forward several core space topics in parallel: cooperation on human exploration, a challenging remote software update on an asteroid mission, the final steps before the launch of two Earth‑observation satellites, and routine yet revealing work aboard the International Space Station.

Meeting with the Artemis II crew

In the Netherlands, members of the Artemis II mission met the teams responsible for the European Service Module of the Orion capsule. Direct exchanges between astronauts and engineers focused on performance, reliability and interfaces — a building block for the next phase of crewed lunar flights and a driver for shared standards in human spaceflight.

Hera: software upgrade from a great distance

The ESA mission Hera, which studies the binary asteroid Didymos and its moon Dimorphos, received a remote software update from roughly 140 million kilometres away. The successful intervention under significant communication delays demonstrates how robust mission operations can be organised over interplanetary distances — a key capability for scientifically assessing impact effects and for future planetary defence approaches.

FLEX and Sentinel‑3C: pre‑launch preparations for more precise Earth observation

Two satellites, FLEX and Copernicus Sentinel‑3C, arrived at the European spaceport in French Guiana. FLEX will measure plant fluorescence — a direct indicator of photosynthesis and thus vegetation vitality. Sentinel‑3C complements the Copernicus programme with measurements of ocean and land surface temperatures, sea‑surface parameters and vegetation indices. Together, the two missions will create a denser data basis for weather and climate models, agriculture, water‑resources management and natural‑hazard monitoring. Close coordination between the missions will make it possible to detect ecosystem stress responses — for example during droughts or heatwaves — more quickly and at finer spatial detail.

On the ISS: exercise, plant chamber and auroras

Some 400 kilometres above Earth, ESA astronaut Sophie Adenot commissioned the new European Enhanced Exercise Device. The workout system for pulling, rowing and resistance exercises helps prevent bone and muscle loss in space — essential for long‑duration missions. She also documented growth in the station’s vegetable chamber, another step toward reliable food production under space conditions. From the Cupola she captured images of intense auroras, visualising the dynamics of Earth’s magnetic field and its interaction with the solar wind — phenomena relevant to satellite operations and radio communications.

James Webb: new insights, wide impact

In July the James Webb Space Telescope delivered another milestone with new high‑resolution observations. Although these primarily serve astrophysics, the instruments, data processing methods and international collaboration models developed for Webb feed back into many areas of spaceflight — from mission design to data analysis.

Relevance for Earth and climate

July’s activities range from direct support for human exploration to concrete improvements in Earth observation. FLEX and Sentinel‑3C will depict vegetation condition, water balance and ocean processes with greater fidelity and reliability — a foundation for climate research, agricultural planning and early‑warning systems for droughts and floods. Hera demonstrates how complex remote operations can succeed under demanding conditions. And the ISS results on exercise and plant cultivation provide elements for longer stays in space, with technologies that can also be applied on Earth — for example in controlled agriculture and more efficient resource use.