The vast differences between the planets do not seem to support the accepted scientific theories of their formation.
The theory held by many scientists concerning the evolution of our solar system is basically that a large gas cloud in space condensed into what we now call the sun. Chunks of this cloud flew off into orbit around the sun and eventually condensed into planets. That is Roberto Alomar Jersey , the other planets in our solar system were allegedly formed by the same process which formed our own planet, earth.
Sound logical? It might have -- in the eighteenth century. Not today. Space exploration does not seem to support this.
EXPLORATION OF VENUS
On February 12, 1961, the Soviet Union launched Venera 1 into solar orbit, making it one of the earliest attempts to probe Venus. By the time Veneras 13 and 14 landed on Venus in early 1982 Toronto Blue Jays Jersey , man had already landed several modules on Venus which relayed good data back to earth. Throughout these missions it became painfully clear to scientists that the real Venus had no resemblance to the Venus about which they had theorized before the probes.
Venus was once thought of as "earth's twin." It is our nearest neighbor in the solar system, and it is approximately the same size and density as earth. Although Venus intercepts twice as much sunlight as earth because it is closer to the sun, it was thought that its surface conditions were similar to earth's since the thick global clouds of Venus reflected most of the extra light. Scientists reasoned further that since earth and Venus condensed from the interstellar clouds of the same region in space their elemental composition must be roughly the same.
The theories about Venus went as far as saying that its atmosphere was made up of the same gases as that of earth, and one day on Venus was about the same length as a day on earth.
The picture we had of Venus was of a planet similar to earth except for something of a "murky jungle" spanning the entire globe. The impression scientists gave was that astronauts landing on Venus would need little more than London Fog coats.
As exploration of Venus proceeded, facts began replacing completely erroneous theories. Not only were conditions on Venus not what we had anticipated Hunter Pence Jersey , but the data returned by the Venera and Mariner missions showed Venus to be so different that it appeared highly unlikely that earth and Venus could have evolved from the same gas clouds. We found Venus to be a far more hostile environment than the "murky jungle" we had envisioned.
So much so, that Venus' climate is probably more hostile than any other planet in our solar system. The only ones more disappointed than scientists were Bangladesh tigers -- they were convinced that after death they went up to the jungles of Venus.
Here's an idea of what it's like on Venus: the temperature is around 900 degrees Fahrenheit -- that's great vacation weather, if you happen to be a tube worm with poor circulation. The atmosphere is about 97 percent carbon dioxide, as compared to earth's atmosphere of about 90 percent nitrogen and oxygen.
Bright sunny days on Venus are nonexistent; every day is like a heavy overcast. And if the sun did come out, you could never go to the beach on Venus because there are no oceans. Venus is so dry that the relative humidity rarely reaches one percent; forget about "raindrops fallin' on your head." But then Asdrubal Cabrera Jersey , on Venus, the last thing you'd want is rain. Rain on "earth's twin" consists of sulfuric acid. Such a rain would dissolve sulfur, mercury, lead, tin Joey Gallo Jersey , and most rocks. To go out in weather like that your Totes hat would need a lining made of tempered steel, and Tarzan would have to wear a lot more than "Fruit of the Loom."
If you still think conditions on Venus are similar to those of earth, I strongly suggest you move to different neighborhood -- your current one has completely deteriorated.
Venus has a surface pressure of about 90 times that of earth, which is the equivalent of going about a half mile down into the ocean. The sun rises in the west and sets in the east.
One day on Venus takes approximately eight earth months; a couple living on Venus could have a baby almost every "day."
AGAIN, CONTRADICTIONS
Of all the great differences between earth and Venus Rougned Odor Jersey , one in particular poses a very strong and obvious question: if earth and Venus formed of the same gas clouds, how can 70 percent of earth's surface be covered with water yet the only trace of water on Venus is a relative humidity of about one percent? What happened to all the water on Venus? Or, where did all the water on earth come from?
AND THEN, THE THEORIES
One theory, and perhaps even the only one Nolan Ryan Jersey , about where all the water on Venus went is this: millions of years ago, the greenhouse effect of Venus' atmosphere caused its temperatures to soar above 2000 degrees Fahrenheit. This caused water to break up into hydrogen and oxygen. The hydrogen escaped into space and the oxygen mixed with molten rock forming the Venusian crust.
Then why is there a large volume of water on earth?
Scientific studies suggest that earth, during its alleged formation, was hot enough that to this day it retains a molten core. So, if earth also went through extreme heat during its infancy Adrian Beltre Jersey , why didn't water on earth take the same course as water on Venus? By the time earth cooled, there should have been about as much water left on it as there is on Venus today -- practically none.
Furthermore, there is no evidence indicating that there was ever any large volume of water on Venus. There are no gullies, trenches, or craters left vacant by oceans Ivan Rodriguez Jersey , lakes, or rivers. If all the waters on earth were to disappear, they'd leave some unmistakable natural landmarks behind.
The answer given by some is that perhaps Venus' high temperatures never allowed water to even reach a liquid state.