Venus





__Introduction__
Venus is one of 4 terrestrial planets in the solar system. Terrestrial means Earth-Like. In a terrestrial planet, it usually has a rocky surface, thin or no atmosphere, and higher density. Venus, unlike the others, has a thicker atmosphere making the planet very hot.

Also, a characteristic that makes the planet slightly different from the other planets, it does not have any moons. Venus is considered to be Earth's twin, mainly for the fact that they are approximately the same size. The atmosphere is very thick and can not support any form of life.

__What we know__
Venus has many characteristics that make it unique. Its crust is the most similar to earth’s. The surface is a rocky, dusty, waterless, canyons and plains, and 200 miles of hardened lava for a river. Its atmosphere consists of 95% carbon dioxide, and then nitrogen, sulfuric acid, and some other elements.

The temperature is almost always about 900 degrees Fahrenheit. Venus has the most circular revolution of all the planets, and it has no seasons. Its orbit around the sun takes 225 earth days and one rotation takes 243 earth days, also it rotates the opposite direction of all of the other planets in the solar system. When Venus is at its closest point to earth, it is only 26 million miles (42 million kilometers) away.

Because of its thick atmosphere, the atmospheric pressure on Venus is 90 times the pressure on earth. The gravitational pull on Venus is 91% the pull on earth. Also, the planet appears to be spinning backwards because it's axis is at 177 degrees, or upside down compared to most other planets.

Average distance from the sun :
0.723 times earths

The diameter :
95% of earth's

Its mass :
81% of earths

The density of Venus:
90% of earth's

Rotation:
Opposite direction of Earth's (Retrograde rotation)

Q: Why is the atmosphere so thick?
A: Because the atmosphere is primarily made up of Carbon Dioxide, due to this, the atmosphere is very thick and dense because of its chemical makeup.

Q: Has anybody landed on venus?
A: No nobody has, but umanned space craft have landed and taken photos.

 Q: What is the weather like?
A: It is normally clear. It is very hot due to the escape greenhouse effect.

 Q: How was it created? 
A: According to the condensation theory a nebula began to condense and pull together while clumps of material started to join together under the force of gravity.

 Q: Does Venus have craters?
A: Yes, all craters are between 1.5 - 2.0 KM across (.9 - 1.2 Miles) 

 Q: How far away from the Sun is it?
A: From the Earth?

Q: Why is there no moon?
A: Venus has no moon because its gravitational pull did'nt catch any objects in perfect orbit or the objects got out of the gravitational pull and drifted out to space.

Q: Can life be supported?
A: No life can be supported due to the conditions.

Q: Are there any active volcanoes?
A: There are active volcanoes although there are no plates on the planet.

 Q: Have we ever visited Venus?
A: Yes, we have visited Venus through many different NASA missions with satellites and other devices such as robotics to roam its surface.

Q: What is the rotation pattern?
A: One rotation is 243 Days long

Q: What gases make up the atmosphere?
A: carbon dioxide, nitrogen, sulfuric acid

Q: How long are the years?
A: One year on Venus is 225 Earth Days long

<span style="color: rgb(254, 11, 11)">Q: How long are the days?
A: One day is 117 Earth Days long

<span style="color: rgb(246, 4, 4)">**Q: Has NASA studied Venus?**
A: Yes. The [|Magellan mission] from 1989 to 1994 studied Venus in depth.