Europe's Space Rider prototype crashes after parafoil fails during Oct. 6 drop test

On Oct. 6, a helicopter over a military range on the Italian island of Sardinia released a minivan-sized mockup of Europe's Space Rider from an altitude of about 2 miles, or 3 kilometers. The first parachute, a drogue chute, opened as planned and began slowing the fall. Then the larger steerable parafoil, which was supposed to take over, detached during deployment. The vehicle dropped in freefall and hit the ground.

The European Space Agency has since recovered all of the craft's components. Its cause is not yet known. An ESA spokesperson told Space.com that after several successful tests using representative vehicle masses, the October system-level drop test was not completed as planned because of an anomaly in the parafoil deployment sequence. An independent investigation is under way to find the root cause and inform next steps.

The test mattered because of how Space Rider is meant to come home. The vehicle is being developed as Europe's first reusable orbital spacecraft, an uncrewed craft that would carry scientific experiments to orbit for up to two months and return them to Earth for analysis. It has no wings. Its lifting-body design depends on a steerable parafoil to guide it toward the landing area, which allows a runway-style touchdown. That differs from other parachute-aided recoveries in current practice, which are less precise. The ability is a critical requirement for reusing the vehicle after missions.

The mockup was a full-scale test model built to evaluate the descent and landing systems. It reproduced the size and flight characteristics of Space Rider's reentry module and carried avionics to run autonomous guidance and navigation. It was not a space-ready article.

The October drop followed a delay. An earlier attempt in May was aborted during preparations, before the model was released, when a sensor flagged an issue. The test range, operated by Italy's Ministry of Defense, was then unavailable from June through September. October's test was the first since that aborted attempt.

The descent and landing qualification campaign began in 2025, and earlier tests had demonstrated the parafoil deployment and the vehicle's autonomous capabilities. Earlier this year, Space Rider also went through separate thermal protection testing, in which heat-shield materials were exposed to temperatures around 2,900 degrees Fahrenheit (1,600 degrees Celsius) in plasma wind tunnel trials.

Géraldine Naja, ESA's director of space transportation, addressed the failure at an ESA Council media briefing on Oct. 22. She said the agency hopes the test will not force changes to the remaining schedule and qualification activities, and she added that those remaining activities are not on the critical path of Space Rider's development. She called the incident unfortunate but important. Many earlier tests had succeeded, she said, and testing and validation are part of developing a space system.

ESA has targeted Space Rider's first orbital mission for later this decade. What to watch now is the independent investigation's finding on why the parafoil detached, and whether ESA needs to repeat the drop test before that date is confirmed.