ESA and JAXA’s Rapid Apophis Mission for Space Safety (RAMSES) successfully powered on its spacecraft core module during assembly at OHB Italia’s cleanroom in Milan. The mission will observe asteroid 99942 Apophis during its close Earth flyby on April 13, 2029, when the approximately cruise-liner-sized object will pass within 32,000 kilometres of Earth’s surface. The spacecraft’s two main sections are scheduled for integration at ESA’s ESTEC Test Centre in the Netherlands, with launch targeted for spring 2028 aboard Japan’s H3 rocket.[1]
The successful first activation confirms that RAMSES’s central computing and spacecraft systems can operate together before full integration, reducing technical risk for a time-constrained planetary-defense mission. Apophis is not expected to strike Earth, but its 2029 passage provides a rare opportunity to improve asteroid tracking, characterize close-approach dynamics, and validate international coordination—capabilities that would be essential for protecting lunar settlements, orbital assets, and Earth-based recovery systems from future impactors.[1]
The Ark team should track RAMSES’s spring 2028 launch readiness, H3 launch performance, spacecraft commissioning, and data from the 2029 Apophis encounter. Ark risk models should incorporate RAMSES-derived asteroid observation methods, international mission-governance procedures, and contingency planning for threats to lunar communications, power, transport, and stored biological and cultural archives.