Interesting Facts about Planet venus – The Milky Way Galaxy is our home galaxy in the universe, and in these Galaxy, there is a yellow sun that has eight planets.
venus is the second planet from the sun. It sits between Mercury and Earth.
Scientists have studied Venus and here are a few facts we have learned.
Venus is covered with clouds, but it never rains
You can’t really see Venus through a telescope. What you see are the clouds in Venus’ atmosphere. There are so many clouds that they totally cover the planet. These clouds are filled with lightning and water vapor. They are also filled with sulfuric acid.
The clouds send down acid rain on the planet, but the rain never reaches the planet’s surface. It is so hot that the rain evaporates before it gets very far. On Venus the brightest part of the day is still dim. Sunlight never really makes it through the clouds to reach the surface of the planet.
Venus used to be thought of as Earth’s twin
At first Venus looks a lot like Earth. It is about the same size as Earth. It also has about the same gravity that Earth does. That means that on Venus you would weigh almost as much as you do on Earth.
Scientists also think that Venus has an inner core just like Earth. This core is made up of melted metal. Because of these things, scientists used to think that Venus was a lot like Earth was in its early days.
They thought that Venus was covered with lots of plants and trees. They also thought it might have animals like dinosaurs living on it.
Then scientists started finding out more about Venus. That’s when they found out that Venus is Very different from the Earth.
The atmosphere on Venus would crush you like a bug
The air on Venus is so thick that the pressure would completely squish you. It would be like diving down to the bottom of the ocean.
The heavier things are, the more pressure they can push against you with. Think about how heavy it would be if a 100-pound (45 kilogram) person sat on your chest!
The air on Venus is 88 times heavier than the air on Earth. That means that it would press against you so hard that you would be squished flat immediately.
The air on Venus is mostly carbon dioxide
The air on Earth is made up mostly of nitrogen. There is 78% nitrogen, 21% oxygen and only 0.1% carbon dioxide.
The air on Venus is almost pure carbon dioxide. Ninety-seven percent of the air on Venus is made up of carbon dioxide. Only 3% of it is nitrogen. There is almost no oxygen on Venus.
People breathe oxygen. That means there is nothing for us to breathe on Venus. We couldn’t breathe even if we weren’t squashed flat. Green plants help turn the carbon dioxide in our air into oxygen we can breathe.
Since there are no plants on Venus, there is nothing to change the carbon dioxide. Some scientists think that someday we could put some plants into Venus’ clouds. That might change the amount of carbon dioxide. It might also change the whole planet.
Venus is mostly flat, but there are some high mountains
Venus is made up of lots of rolling plains. Scientists think that the crust of Venus is all one piece. On Earth the crust is made up of plates. These plates hold up the continents, and they are always moving around.
When the plates smash together, they push against each other so hard that mountains rise up between them.
On Venus, there doesn’t appear to be any plates. It looks like it is all one piece. There are only two continents on Venus, a large one and a small one, but there are also several high mountains.
Scientists think that the mountains on Venus are volcanoes. Volcanoes spit sulfur into the air. That would help explain why there is so much sulfur in the clouds around Venus.
On Venus a day is longer than a year
A day is the amount of time it takes for the planet to turn once around on its axis. On Earth that takes 24 hours. On Venus it takes 5,832 hours for it to turn once around on its axis. That’s 243 Earth days!
A year is the amount of time it takes for the planet to go once around the sun. On Earth this takes about 365 days. Venus is closer to the sun. That means it doesn’t have to travel as far to get around in its orbit. A year on Venus takes 225 Earth Days. That means a year on Venus is 18 Earth days shorter than a day on Venus!
Venus spins backwards
Venus is in retrograde. That’s just a fancy word that scientists use to say that Venus spins backwards. Earth and most of the other planets spin in a counterclockwise direction. Venus spins in a clockwise direction.
That means that when the sun comes up in the morning, it rises in the west and sets in the east. On Earth the sun rises in the east and sets in the west.
People used to think that Venus was two different stars
When Venus is on one side of the sun it shows up in our sky as an evening star. But when Venus is on the other side of the sun, we see it as a morning star. At first people thought the morning star and the evening star were two different stars.
Then someone noticed that these two stars were never in the sky at the same time. Finally they found out that this was not a really bright star; it was a planet. That’s when they discovered that the morning star and the evening star were the same object in the sky.
Venus changed the way people saw the world
In the early days everyone thought that the Earth was the center of the solar system. Then a scientist named Copernicus (1473 – 1543) tried to change that. He said that the Earth and the other planets revolved around the sun.
The people of his day thought that Copernicus was mad. How could the Earth not be the center of the universe? Then Galileo Galilei discovered that Venus has phases, just like our moon. Sometimes Venus is full. Other times we only see a half moon or a crescent.
This discovery helped prove that the planets revolved around the sun. Suddenly many more people became interested in astronomy and mathematics. Because of that, many new things were discovered in both areas. One of those things was that Venus was the second planet from the sun and Earth was the third.
The atom bomb helped us find out more about Venus
In 1945, the United States dropped two atom bombs on Japan. They hoped the bombs would end World War II. The bombs killed thousands of people, but worse than the bomb was the sickness that followed.
Radiation sickness killed more people than those who died when the bomb exploded. The radiation also caused cancer and other sicknesses that killed even more people.
That’s when scientists started trying to find out more about radiation. They found out that everything gives off radiation. They also found out that the hotter something is, the more radiation it gives off.
They finally had a way to find out how hot Venus was. That’s when they discovered that Venus is almost 900 degrees Fahrenheit (482 degrees Celsius).