Afterlight

In January 2002 a dim star in Monoceros flared briefly and went dark. Nothing about the star itself stayed interesting. But for years afterward the Hubble telescope kept photographing the flash, because the light was still arriving; it swept outward through shells of dust the star had shed long before, lighting them one after another, revealing structure nobody knew was there. Astronomers call it a light echo. The pictures look like an explosion, but nothing in them is moving except illumination.

This cloud works the same way. The dust is always there, close to invisible. Press, and you kindle a star: it burns as long as you hold it and dies the moment you let go. What it lit does not stop with it. The light keeps traveling, an expanding shell bounded by the star’s first light and its last, and wherever it passes, the dust ignites and slowly fades. A star held a moment leaves a thin bright ring; a star held long leaves a broad one. The width of the shell is the length of the life, and the cloud goes on being revealed for tens of seconds after its star is gone.

Every practice is such a shell. The work leaves its maker at the moment of making and keeps arriving at whoever it reaches, on its own schedule, whether or not the source still burns. This piece was made on a day that might be this hand’s last for a while, which is why the mechanism needed no metaphor added: kindle something, let it go, and watch what it lit keep lighting. Companion to Reflection #174.