Planetary Defense Got More Institutional

JAXA and ESA's cooperation agreement on planetary defense and the RAMSES Apophis mission is not the loudest item, but it deserves the lead tier. Apophis is the kind of object that turns abstract preparedness into a schedule, a mission architecture, and agency-to-agency commitments. The judgment here is simple: planetary defense gets more serious when it moves from concern to assigned work. The next test is whether practical follow-through appears in mission details, not ceremony photos.

Each claim is kept next to its source so the story never overstates what official evidence can actually prove.

A running record of what changed, when, and why. Published Jul 3, 2026.