The History of the Solar System
A history of how the Solar System developed in to what it is today.
How did Modern Solar System Theories Develop?
Ptolemy proposed a model of the universe with Earth as the center in the 2nd century. This agrees with what the Bible says and would stand until the 16th century, when Galileo proved that the Sun was the center of the Solar System.
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Ptolemy’s Earth-centered universe
The Copernicus system, which was suggested by Nicolaus Copernicus, was developed in the 16th century. This proposal was against the Bible and would cause many problems for the people who proved that it was correct.
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The Copernicus System
His theory was published in a book called On the Revolutions of Heavenly Bodies, which states that the earth rotates on its axis and revolves around the Sun. The book was condemned in 1616 by the Church, although his ideas had already spread out to the public, which would lead the way for future astronomers to prove this theory.
Galileo followed Copernicus’ work on the Copernicus Theory. He increased the magnification of the first telescope. Using that tool, he managed to observe the phases of Venus, and confirm that the Copernicus theory was correct. When the Church banned all books on the Copernicus theory in 1616, Galileo was tried and sentenced to indefinite house arrest and forced to believe the Church’s views, although he always believed the Copernicus Theory was correct.
Uranus was discovered by Sir William Herschel in 1781. He managed to find one “star” unusual and observed that it had a planetary orbit 18 times farther from the Sun than Earth.
Since the orbit of Uranus was irregular, astronomers thought there must have been another planet past Uranus. In 1846, the planet was recognized by Johanne Galle after many tries by other astronomers to unsuccessfully identify the planet.
Pluto was discovered by Clyde Tombaugh in 1930 by comparing three photographic plates of Pluto. However, Pluto was removed from the Solar System and classified as a dwarf planet in 2006.
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14 Responses to “The History of the Solar System”
On March 19, 2007 at 10:54 am
Why would they remove Pluto?
On March 17, 2008 at 11:45 am
cause theyre stupid
On March 25, 2008 at 3:22 pm
Pluto is as small as or slightly smaller than Ceres, an asteroid/dwarf planet that orbits the Sun somewhere between Mars and Jupiter, I believe. It didn’t make sense to call Pluto a planet unless they opened the doors to countless potential “planets”, including Ceres and bodies beyond Pluto which are just beginning to be discovered with advancing technology.
On April 14, 2008 at 2:26 pm
IT SUCKS HAVING PLUTO AROUND I MEAN ITS SO SMALL
On May 28, 2008 at 10:21 am
I know pluto is soo hot!
On July 9, 2008 at 6:32 am
Their idiots to delete pluto, they stink
On July 21, 2008 at 3:10 pm
I know there are only 8 major planets and 3 dwarf planets. However if pluto, ceres, and eris are orbiting the sun and are large enought to be in the shape of a sphere, shouldn\’t they count with the other eight. Look at a picture of the major 8 planets. Jupiter and Saturn are so huge they make the other 6 look like dwarf planets so if you put all 11 of them together, the 3 dwarf planets so not look much smaller than mars, mercury, neptune, etc. Bottom line is a dwarf planet is still a PLANET so I think they should establish our solar system is having 11 named planets. The more the merrier.
On November 30, 2008 at 9:38 pm
I thought that another scientist proved the Copernicus System to be correct. Not Galileo…..oh well…i guess i’m wrong
On December 9, 2008 at 3:24 pm
Pluto isn’t a planet!!!!!!!!!!!!!!!!! NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO!!!!!!
On January 21, 2009 at 5:48 am
ffffffghgjhj
On April 23, 2009 at 12:11 am
pluto is just a ball of colorful gas and rocks. thats why
On May 28, 2009 at 3:29 pm
omg
pluto!111!!!1!1!!11!11!11
my mum lives on pulto!!!
On November 6, 2009 at 5:44 am
alien alerrt
On November 6, 2009 at 5:46 am
cheese cheese cheese cheese cheese that’s what the moon is made out of
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