As she watched, the distance between the two ships gradually decreased.

But his meaning was plain enough even then, and became plainer as the distance between the two sets decreased.

Consequently, the distance between the shock and the body decreases at higher Mach numbers.

The distance between the bomber and the gate was decreasing rapidly.

The colors grew hotter and brighter as the distance decreased.

The closing speed would be the rate at which the distance between the two particles is decreasing.

Its distance from the planet's spin axis must therefore be decreasing.

The image from the probe was providing better definition as the distance decreased.

The chase boat inched forward, and the distance between them slowly decreased.

The distance between us and the Arabs was steadily decreasing.