Image of the Day · 2026-08-01

The Straightedge to Another Star

Power thrown at another star is aimed with a compass and a straightedge: one great gold circle, one ruled corridor of wavefronts, one sail already far down the highway.

An artistic imagining, not real hardware. Line-drawing composition in gold and graphite on a warm ivory field, built entirely from ruled lines, radii, and compass arcs with no filled shapes. A great circle, cropped by the lower left corner, is split by one heavy black bar: the half facing up-right is engraved with dense gold ruling that thickens toward the rim, the other half is a fan of fine radii and concentric rings. A comb of short amber ticks fires from the rim into a straight corridor that climbs at thirty degrees to the upper right between two black rails, one of them graduated with distance ticks. Inside the corridor, gold arcs struck from the circle's centre cross the beam at widening intervals, every sixth one heavier and deep amber. Two thirds of the way up sits a small dense disc of concentric gold rings ringed by short radial ticks, with fainter arcs opening ahead of it. Faint construction arcs sweep the open upper field, a block of diagonal grey ruling sits at the top left, a graduated block of horizontal rules at the lower right, and small tick marks scatter across the empty ivory. — A fully speculative artistic imagining, not existing hardware: a phased laser array on an interstellar launch corridor, drawn as a construction sheet rather than a scene. Power leaves the engraved face of the great circle as ruled wavefronts, climbs a corridor measured off in distance ticks, and is still pushing on a small sail two thirds of the way across the frame — the beam aimed, from first mark to last, with nothing but a compass and a straightedge. Image: poweringspace.com. Artistic imagining.