The European Space Agency and Japan Aerospace Exploration Agency have formalized their partnership on the Ramses mission, a spacecraft designed to intercept and study the asteroid Apophis during its close approach to Earth in 2029.
Apophis will pass within 31,000 kilometers of Earth on April 13, 2029, closer than some geostationary satellites. The ESA-JAXA collaboration marks a rare opportunity to conduct detailed science on a near-Earth asteroid at close range without landing on its surface.
The Ramses spacecraft will perform a high-speed flyby of Apophis, collecting data on the asteroid's composition, structure, and rotation. The mission will help scientists understand the physical properties of near-Earth asteroids and refine models of how these objects interact with planetary gravitational fields during close approaches.
ESA leads the mission development while JAXA contributes instrumentation and expertise. The partnership pools European and Japanese capabilities in planetary science and spacecraft engineering. Launch is targeted for 2028, providing Ramses a trajectory to intercept Apophis at its closest approach point.
The study of Apophis carries implications beyond pure science. Understanding the asteroid's mass distribution, internal structure, and response to Earth's gravity informs planetary defense strategies. If a hazardous asteroid threatens Earth in the future, this data enables more accurate predictions of orbital changes and potential deflection techniques.
Apophis gained public attention after initial discovery in 2004 when calculations suggested a small chance of Earth impact. Refined observations ruled out collision, but the asteroid's prominence makes it an ideal subject for international scientific scrutiny. The Ramses mission transforms what could have been a threat into a scientific windfall.
This ESA-JAXA collaboration demonstrates how space agencies leverage complementary strengths on high-priority objectives. The 2029 Apophis encounter occurs only once per generation