Why can astronomers see the surface of mars but not clearly venus?

Answer 1

Astronomers can see Mars surface more clearly because the sun shines on Mars more than Venus so we can see it better.

2. Well, Mars has little atmosphere, or at least a transparent one.

Venus is covered by dense clouds mainly of CO2, N, and SO2. The surface is about 460oC, and the atmospheric pressure about 93 Bar (93 times that of the Earths atmosphere).

Answer 2

While it's very easy to look at the surface of Mars with ordinary binoculars, it is near impossible to observe the surface of Venus, even with the longest and most powerful telescopes in the world.

Why is this? Well, Mars has a very thin atmosphere. That means very few clouds and particles compared to the Earth, so we can easily see the surface of Mars without clouds obscuring our view. However, Venus has an atmosphere much denser and thicker than the other inner planets. The thick H2SO4 (sulfric acid) clouds in Venus's atmosphere cover up the entire planet completely, making it impossible to see the surface of it.

So how can NASA still observe the surface features of Venus? The answer is easy: radar. NASA sends unmanned spacecraft to orbit Venus, and while they're there the spacecraft use radar to examine the height of volcanoes and cliffs.

Answer 3

because asronomers can't see Venus

Mars has no atmosphere to see through and I believe Venus does although poisonous to us.