It is incredibly risky, and the possibility of inadvertently blinding oneself and inflicting lasting eye damage is not worth the risk. Venus should be observed when it is at a safe distance from the sun, such as during its elongations. Of course, the finest views of Venus will be after the sun has set or before it rises.
Venus is on average 100 million miles away from the sun (about 5 times farther than Earth is). Because of this distance, Venus does not receive the same amount of heat as Earth does; instead, it receives enough energy to be able to melt rocks, but not enough to evaporate all of its water. The atmosphere of Venus is a thick blanket that blocks most of the sunlight that reaches the planet's surface, causing an extremely hot climate. It is believed that much of the water vapor in the atmosphere escapes due to solar radiation pressure.
It is impossible to accurately estimate how long you can stare into the face of the sun without suffering any adverse effects. But since vision begins in the retina, which is very close to the sun, even a small pupil would cause blindness if exposed for a long period. The human eye can withstand only so much radiation before it is damaged. The best advice we can give is never to look at the sun without proper protection.
The fact that Venus has clouds does not mean that it is inhabited by little green men. Clouds are made up of liquid droplets of water vapor suspended in the air.
The location of Venus in relation to the Earth and the Sun determines how well we can view it. Venus has an albedo of 0.7, which means it reflects around 70% of the sunlight that strikes it. So that's why Venus is blazing so brilliantly right now, and it's a beautiful sight to see in the evening sky. However, this isn't necessarily long-term behavior for the planet.
Venus was once much more Earthlike, with an atmosphere and surface water (in the form of clouds and ice) in its own right. But over time these things were stripped away by the Sun's heat and pressure. Today, all that remains are two small, rocky planets with extremely hot surfaces.
But even though it's a dead world, we still get to see some amazing sights on Venus. The angle at which it passes between the Earth and the Sun brings out its beauty in full glory, especially when combined with its setting position in the western sky just after sunset.
For example, if you were watching from across the ocean, you might see several flashes of light every hour as lightning strikes the cloud-covered surface. Or perhaps you'd see a single large flash followed by hours or days without another one because there's no electrical power to charge up the system again.
In addition to these natural phenomena, there are human-made objects on Venus too.
Venus is not seen against the background light of the Sun until it is 5 degrees from it, therefore it cannot be seen until 20 minutes after sunset or before sunrise. Venus's greatest eastern and western elongations are 45 and 47 degrees from the Sun, respectively, and it travels 3 hours and 8 minutes behind or in front of the Sun. At these points, it will rise in the east and set in the west.
During a total solar eclipse, when the Moon is completely covered by the Earth, only Venus is visible in the night sky. It can be found just south of the Sun in the morning sky, but not at midday when it is directly opposite the Sun. By 2:00 PM it has moved into the southwest corner of the sky and by 4:00 it is near the crest of the constellation Sagittarius.
At this time it is rising in the east and setting in the west, which is when it can be seen most easily from around the world because people are looking in its direction.
Total solar eclipses happen in either the West or East when the path that the Moon takes as it orbits Earth crosses directly between the Sun and the Earth. The location where this occurs depends on where you are located on Earth at the time of the eclipse. If you are located in North America then you will see a total solar eclipse if you are somewhere within a region known as the path of totality.