It appears to move, and the participants are asked to estimate how far the dot of light moves.

Since light moves faster than all others, matter can only move inward at the event horizon.

When light moves from air to glass and back to air again, it changes direction slightly with each change in material.

The light moves, and he appears with it at the door.

How they sparkle when the light moves about them!

The speed at which light moves does not depend on its energy.

And still a light moves long the river.

Since light moves slower than orbital velocity, it falls to the floor.

Shadows shouldn't be able to move unless the light moves.

Unless the light moves, the image disappears within a second or so.