Example Sentences for orbiting. Two ships which had been orbiting the planet also changed course and started out. Now, Herc, on the air, you're orbiting the fourth planet of a sun. The ship swung down into the cloud layer; floating wisps of gray vapor streamed past the orbiting Cavour. High precision electronic eyes placed on orbiting satellites picked up the firing of the rocket and the launch parameters.
1 There is no evidence from this study to suggest that taking nutritional supplements can prevent people who currently do not have vision problems from getting AMD in the future.  The results are restricted to the supplements evaluated (lutein, zeaxanthin, zinc, vitamins C and E, and beta-carotene).
After this time we see much better in the dark, but we have very little colour vision. This is known as scotopic vision. The active substance in the rods is rhodopsin. A single photon can be absorbed by a single molecule that changes shape and chemically triggers a signal that is transmitted to the optic nerve. Vitamin A aldehyde also plays an essential role as a light-absorbing pigment. A symptom of vitamin A deficiency is night blindness because of the failure of scotopic vision.