Thus, the Tycho impactor, probably 8 to 10 km wide, came in low over the Moon's western horizon. On Earth, 109 million years ago, dinosaurs and other reptiles must have witnessed this devastating collision and perhaps suffered a few days later when fist-sized pieces of Tycho ejecta hit the Earth.
Tinnitus can be experienced in both ears as well as in a single ear or inside the head. Because of the continuous ringing in the ears, tinnitus is also known to cause several psychological side effects.
The noise can be heard anywhere in the head or in one or both ears. Imagine a constant ringing, buzzing or whistling in your ear, 24 hours a day. It is called tinnitus. You never get a break. It is always there. Nobody else but you can hear the noise because it does not come from any external source.