The satellite image collected by Automatic Ground Station 10 is framed with the noise and obstructions of a London street at night, a full story of building behind and four story buildings across the street. Yet in the window of signal there is a glimmer of movement, a curve and swirl of cloud that, in the infrared channel, speaks of something moving far away. I am still in awe of the fact that this is possible with an antenna held out of a window.