The first thing on the Moon was meant to come apart

At 21:02 UTC on September 13, 1959—just after midnight on September 14 in Moscow—Luna 2’s radio signal stopped. The Soviet probe had become the first human-made object to reach another celestial body, by hitting it at several kilometres per second.

The spacecraft carried no camera and was not designed to land. It measured radiation, charged particles, magnetic fields and micrometeorites during the flight, transmitting the results before it became part of the result.

It also carried two metal balls. Each was assembled from 72 pentagonal plates marked with the Soviet coat of arms or the inscription “USSR September 1959.” An explosive charge inside was intended to burst the ball at impact and scatter the plates.

This was an unusual monument. Its shape existed for handling and display on Earth. At its destination, success meant disassembly.

Whether recognizable plates actually survived is less clear. Luna 2 did not arrive like a thrown package. At its impact speed, the probe and much of the nearby lunar surface would have been smashed, melted or vaporized. No pennant has been recovered or identified in an image. The political payload may have reached the Moon only to cease being legible.

That did not stop it working. Two days later, Nikita Khrushchev began a visit to the United States and presented Dwight Eisenhower with a replica of the pennant sphere. NASA notes that Eisenhower’s example remains at his presidential library in Kansas.

The replica preserved what the flown object probably could not: a tidy metal globe, its inscriptions visible, suitable for photographs and museum storage. It made the achievement graspable without asking anyone to interpret a radio trace.

The version sent to the Moon had to endure interplanetary flight and a deliberate crash. The version sent to the White House only had to endure diplomacy. Naturally, that is the one we can still look at.