The shuttle was still about four meters above the landing platform, a good height for making it clear to potential boarders that they weren’t welcome. (A SecUnit could jump that. With ART-drone on the controls, a SecUnit would regret that.) The forward view showed the landing platform’s ramp in the foreground and then farther away, the large shuttle-sized hangar doorway into the installation’s interior. Side views showed empty platforms and shadows; rear showed the wide open outside entrance, dust still swirling in the dim gray light. Dust and something else. A shadow, the shadow of another shuttle lowering into entry position. On our private channel, I asked ART-drone, Is it one of ours?