Diary Entry 3: Continued by a Scientist who has found Galileo's Diary

 Today...

Galileo Galilei passed away on the 8th of January, 1642 in Arcetri, Italy. Galileo's work went on to influence the brilliant minds of Issac Newton, Evangelista Torricelli, Robert Boyle and Vicento Viviani and now almost 400 years later the world, has a clear knowledge of what was then known as our universe but is now only a single solar system, within an infinite amount of galaxies and their stars, most of which are still unknown today. 

The Universe

How has Galileo's Heliocentric Model handled the Tests of Time?

Galileo Galilei was in support of the Heliocentric model which was put forth by Copernicus, and held the Sun at the centre of our universe, with everything else being in a perfect circular orbit to it. Today, the current model of 'our universe' is in fact a heliocentric one, with the Sun being in the centre. However, due to the advancement of technology from just singular telescopes to space telescopes such as Hubble or Spacecraft traveling through space and taking images such as Kepler, our universe of the time of Galileo's existence which consisted of the sun, Earth, Mars, Jupiter, Saturn, Venus and Mercury, has been discovered to only be a single solar system in the Milky way galaxy. This milky way galaxy being one of billions in a perhaps infinite amount of space. The idea that the universe of had orbits which were perfectly circular, has however been rejected and replaced with the proven idea of elliptical orbits, Some small modifications have also been made to the Heliocentric model, many of which contributed by the supporter named Sir Issac Newton, which includes the addition of planets and/or dwarf planets.
Galileo's findings of Venus' phases were seen to be accurate and are still used today as evidence in support of the heliocentric model. The discovery of Jupiter's moons is also used but almost 60 new moons have been added to the list which was started by Galileo.
However, with only a few incorrect findings when taking into consideration the amount of research and observation Galilei is able to do with his equipment, it can be seen that the model produced was the basis of a correct idea of the Solar system, and Galileo proved this by almost sacrificing his life to the inquisition in support.  Therefore, in regards to the evidence available before and after his research, Galileo presented a fairly correct model, which began as the basis to the correct heliocentric model that is taught today.

Our Solar System today.