I'm a little sad that the mission-planning team didn't include a "Look out below!" warning on the other side of the plaque.

Dropping a half-ton, two-foot-diameter, sphere of brass out of orbit is something of a health hazard to whatever life forms might have to catch it. If Miley Cyrus needs a follow-up hit, "Wrecking Ball" and "LAGEOS" have the same number of syllables.