The Solar System : How Our Understanding Has Changed

The solar system was created 4.6 billion years ago by a gravitational collapse. A solar system is a star that has planets, moons, asteroids, comets, and meteoroids travel around it. The solar system contains eight known planets which are Mercury, Venus, Earth, Mars, Jupiter, Saturn, and Neptune. There is around several hundred dwarf plants but only five are currently recognized. The solar system has about 181 moons which orbit around the planets in the solar system. There is also about 150 million asteroids and 3,406 comets also in the solar system.

the heliocentric solar system. Johannes Kepler further modified the heliocentric system, by mathematically showing that the planets’ orbits are elliptical. With his invention of the telescope, Galileo made new observations about the solar system and found mathematical laws that described the movement of the planets. Later, Isaac Newton established a universal law of gravity. With the new scientific discoveries, the gap between religion and science increased. Science revolutionized the human though and its understanding of the universe.

The Scientific Revolution is the qualitative jump in sciences in the 17th century. New discoveries in natural science, engineering, geography rejected many traditional ideas and a common picture of the world. Aristotle, Claudius Ptolemy, and Christian Theology represented the universe as geocentric conception where the earth was motionless and in the center of concentric spheres. (479) Such representation was supported till Nicolaus Copernicus (1473-1543) argued Ptolemy's conception and suggested heliocentric understanding. His conception opened the Earth as a planet where the moon took place as Earth's satellite and the sun was the center of planets. Also as Copernicus, Tycho Brahe and Johannes Kepler disagreed with Ptolemy's geocentric system. Based on the Brahe's work, Kepler came to conclusions that each planet moves in an ellipse and were able to calculate relations between planets' size and

The geocentric model created by Ptolemy, and the heliocentric model created by Copernicus, had greatly differed in which force of being (the sun or the earth,) was the center of the universe. Ptolemy’s Geocentric

To me, astronomy means understanding more about the universe we live in. We often get short sighted living on Earth, and we fail to realise just how much more there really is out there, not only in our Solar System but in the Milky Way and beyond! Learning about different planets and other celestial bodies opens up a whole new world (pardon the pun) of learning, and can teach us about past events such as the creation of our Solar System or even the universe. And by learning more about these foreign bodies, we are also learning more about the forces that govern Earth, how Earth came to be, and what may lie in store for us. Overall I think it is a very interesting subject, and while more down-to-Earth people (again, pardon the pun) may scoff

To almost everyone in the sixteenth century, it was common knowledge that sun revolved around the Earth. After all, the universities taught it, and the Papacy preached it. The heliocentric theory was heresy, at best. Scientific “fact” was proven not by observation, or as we know it today, the scientific method, it was instead proven by philosophy. If something appeared to be true, then it was true. In 1610, Galileo published his book “Starry Messenger”, which was created based on observations made with the newly invented telescope. This book, along with others published at this time, effectively started the Scientific Revolution.

Scientists have been researching about outer space for years but still don’t know as much as one may think. Scientists still do not know much about the early solar system. Scientists believed that the solar system was reshuffled around in the past which would explain the Kuiper belt and the Oort cloud of icy bodies, the inner planets being destroyed by asteroids and why there isn’t any super Earths around in this solar system. But scientists recently discovered something that may change their theory. In Michael D. Lemonick’s “Plant Nine from Outer Space,” Lemonick claims that scientists may have found a planet with ten times the mass of Earth that is beyond Pluto and may be the reason why objects from the Kuiper belt are following similar orbits

Our very own solar system consists of the most important star called the Sun, it provides earth with the necessary energy in order to sustain life. There are 8 planets revolving around the sun and they are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus,Neptune , and Pluto. However Pluto is no longer considered a planet. But that is still debatable. The Sun is the center o the Solar System, it has a nearly perfect sphere shape of hot plasma that generates a magnetic field. The asteroid belt is a circumstellardisc which is located in the Solar system between the planet of Mars and Jupiter. The solar system is just one of the many galaxies in our universe and there are more galaxies yet to be discovered.

Johannes Kepler was a German astronomer and mathematician who lived between 1671-1630. Kepler was a Copernican and initially believed that planets should follow perfectly circular orbits (“Johan Kepler” 1). During this time period, Ptolemy’s geocentric theory of the solar system was accepted. Ptolemy’s theory stated that Earth is at the center of the universe and stationary; closest to Earth is the Moon, and beyond it, expanding towards the outside, are Mercury, Venus, and the Sun in a straight line, followed by Mars, Jupiter, Saturn, and the “fixed stars”. The Ptolemaic system explained the numerous observed motions of the planets as having small spherical orbits called epicycles (“Astronomy” 2). Kepler is best known for introducing three

The first discovery that we will talk about in this essay, is the discovery of the "solar heartbeat". Scientists have discovered a pulse within the Sun that lies in the layers of gas that revolve underneath the surface of the Sun. Scientists discovered that the Sun's equatorial region rotates at rate that differs from the rate at which the Sun's polar regions rotate. The equatorial region rotating once every twenty-seven days, and the polar regions, every thirty-five days. This differential in rotations extends down a third of the way to the Sun's core, in the convection layer. Rotations at the convection layer also differ from the Sun's equatorial and polar regions, taking only fifteen to sixteen days to complete a revolution. It is believed by astronomers that these internal rotating gas layers are in correspondence with eruptions and solar flares on the surface of the Sun.

Formally, classified natural satellites or moons include 176 planetary satellites orbiting six of the eight planets. Of the inner planets, Mercury and Venus have no natural satellites; Earth has one large natural satellite, known as the Moon; and Mars has two tiny natural satellites, Phobos and Deimos. The large gas giant planets have extensive systems of natural satellites, including half a dozen comparable in size to Earth 's Moon. The objects in the solar system are classified foremost by their dynamics and motion, while size and composition are important for secondary classification. The solar system itself is, defined by the orbits of its constituent bodies. Classification by motion is more useful for astronomers. In fact, the dynamics of the solar system were a central issue for early astronomers such as Ptolemy in the second century and Nicholaus Copernicus in the 16th century. In what follows, we introduce different classifications of the planetary moons.

Humans live on a small planet in a tiny part of a vast universe. This part of the universe is called the solar system, and is dominated by a single brilliant star-the sun. The solar system is the earth’s neighbourhood and the planets Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto are the Earth’s neighbours. They all have the same stars in the sky and orbit the same sun.

Formally, classified natural satellites or moons include 176 planetary satellites orbiting six of the eight planets. Of the inner planets, Mercury and Venus have no natural satellites; Earth has one large natural satellite, known as the Moon; and Mars has two tiny natural satellites, Phobos and Deimos. The large gas giant planets have extensive systems of natural satellites, including half a dozen comparable in size to Earth 's Moon. The objects in the solar system are classified foremost by their dynamics and motion, while size and composition are important for secondary classification. The solar system itself is, defined by the orbits of its constituent bodies. Classification by motion is more useful for astronomers. In fact, the dynamics of the solar system were a central issue for early astronomers such as Ptolemy in the second century and Nicholaus Copernicus in the 16th century. In what follows, we introduce different classifications of the planetary moons.

“The Nine Planets of the Solar System”, which is an article posted on the NASA website, portrays Earth as a planet that is caring yet still mortal. Interestingly enough, Earth has many characteristics that can be analyzed and compared to human emotions. In the article, NASA states, many characteristics, and those being: moderate temperature, a hot core, an atmospheric field that burns projectiles before hitting Earth 's surface, a moon, and multiple natural activities which damages the Earth 's internal and external characteristics.Therefore, Earth’s beauty and vast miles of calm appearance, makes it feel like there is a complete resemblance to me(of course not the green and serenity of it). Out of every single planet in the article the most common and familiar characteristics is Earth. Earth is our home planet which makes it even better because it’s so comfortable to be in Earth as how people are comfortable Although that Earth’s magnificent qualities have a similarity to me if you ever want to learn more about me and continue to pursue an amazing companion(“friend”, I have a girlfriend) for life. Future friends, and future family members should research Earth more to discover many of its comparable qualities to me.

The Sun… Our giant “ball of fire” that rises in the east, and sets in the west, extremely beautiful to watch on these two occasions, but dangerous to look at with the bare eye at high point. While humans know so much about the sun at this day and age, our main source of natural light is still a big ball of fire and mystery. Even though humans have the capabilities to go into outer space to explore and research astronomical objects and bodies, there are certain places and bodies or objects that are just too dangerous to explore, the Sun being one of them.