Venus's atmospheric clouds are so thick that the surface of the planet is not seen when observing it in visible light.

Question

Quizplus · Accepted Answer

Venus's atmosphere is composed mostly of carbon dioxide and sulfuric acid clouds, which are so thick that they obscure the surface of the planet when visible light is used for observation. However, other forms of electromagnetic radiation, such as radio waves and infrared, can penetrate the clouds and reveal the surface features of Venus.

Venus's Atmospheric Clouds Are So Thick That the Surface of the Planet