The Solar System Essay

Mercury: the planet mercury is a greyish brown planet that resembles to the moon so much that they are nearly identical. The planet Mercury is, just like the moon, filled with many, many, craters. The planet mercury is the planet closest to the sun or of the eight planets. The planet mercury is also filled with many, many rocks. In our lesson we learned that mercury travels around the orbit in not 88 earth days, but 59 earth days. In 1974, a muggle prove was sent up there to the planet mercury to study it. The planet mercury is, one of the 7 planets that don't have a single life form on it, well that's in any records. The planet mercury is 1,516 miles in size. Next i will move on to venus.

Gravity: Gravity is a force of nature that keeps things on Earth instead of floating out of the atmosphere.

During the first millennium B.C. scientists realized that astronomy had to become more scientific. Middle Eastern and Chinese cultures started studying the Sun, stars and the planets more closely in an attempt to learn more about our position in the universe.. Star positions also became important tools in understanding directions, and helping with navigation. One philosopher stated in 434 B.C. that the Sun was a ball of fire 60 kilometres in diameter, hovering 6500 kilometres above Earth’s surface. Around 130 B.C., Ptolemy wrote Almagest, which was a huge collection of astronomical data which included mathematical models, information about eclipses, and planetary and stellar positions and movements. It remained a major go to book for astronomy for hundreds of years, and was not seriously challenged until Copernicus disputed the geocentric model of the solar system in the 1500’s

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.

Indeed, most of the problem is that there is no formal definition of a planet. Furthermore, it is very difficult to invent one that would allow the solar system to contain all nine planets. I suggest that for an object to be classified as a planet, it must embody three characteristics. It must be in orbit around a star (thus removing the larger satellites from contention), it must be too small to generate heat by nuclear

Scaled Distance Mercury-Sun: 5.83 x 107 Km * (1 meter/2.87 x 108 Km) = 0.20 m

The name of our planet in Roman Mythology is the Roman god of commerce, travel, and thievery. Mercury is the closest planet to the sun, it rotates around the sun faster than any other planet in our solar system. It takes 1407.5 hours for it to rotate on its axis. Mercury is the smallest and innermost planet in our solar system. The radius of Mercury is 1,516 mi. Mercury’s mass is 3.285 times 10^23 kg. Mercury takes 88 days to rotate the sun completely. Mercury’s distance from the sun is 35.98 million mi. Mercury’s equatorial rotation velocity is 10.892 km/h (3.026 m/s). Since Mercury is closest to the sun the surface temperatures can be scorching hot and it can reach 840 degrees Fahrenheit (450 degrees Celsius). Mercury also doesn’t have a real atmosphere to entrap all that heat.

Although all nine planets are a huge part of the solar system there's a lot more to the solar system than the nine planets. According to scientist the Solar System started out as an enormous cloud of gas and dust. Scientist believe that the cloud of dust and gas began to collapse under the weight of its own gravity and it did. The matter that was kept within itself began moving in a giant circle and at the center of the spinning cloud a tiny star began to form. The star eventually grew larger and collected more dust and gas that collapsed into it. Farther from the center of the mass that was being formed there was many smaller clumps of dust and gas that were also collapsing. The large cloud in the center eventually became the sun while the smaller clumps formed the planets, moons, comets and,

Years and years ago, there were only eight known planets that orbit our sun; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Eight planets until that fateful day when Clyde W. Tombaugh discovered our ninth planet. Although, a little credit should be given to Percival Lowell,

Firstly, to deduce how the Earth came to form the structures we know today in modern Earth, we must go back

Humans have longed to believe in extrasolar planets, as surely there have to be planets elsewhere in the universe. Claims of supposedly discovered extrasolar planets can be dated back to 1855 when Captain S. W. Jacobs from the Madras observatory, claimed that he had discovered a planet orbiting a binary system (Jacobs 1855), all the way up until 1991 when a team of astronomers announced then retracted the alleged discovery of an extrasolar planet around a pulsar star (Lyne and Bailes 1992). Planets are extremely hard to detect as they are a very faint light source and the light from its parent star is much brighter and essentially blocks out light from a planet (Winters 1996). It was not until 1992 when the first exoplanets were confirmed

Mercury which is the planet that is closest to the sun is the first planet I will discuss. Mercury is the smallest of the inner

Scientists believe the solar system began about 5 billion years ago, perhaps when a nearby star exploded and caused a large cloud of dust and gas to collapse in on itself. The hot, central part of the cloud became the sun, while some smaller pieces formed around it and became the planets. Other fragments became asteroids and comets,

Jupiter is the fifth planet from the Sun and by far the largest mass object in the solar system of all the other planets. Jupiter is twice the size of all the other planets combined. It is as 318 times the sizes of earth. The distance that Jupiter orbits the sun is 778,330,000 km (Gallant pp154). The diameter is 142,984 km and the mass that it has is 1.900e27 kg. Jupiter is the fourth brightest object in the sky after the Sun, the Moon and Venus. Mars is some times brighter. Galileo discovered Jupiter in 1610(Gallant); another interesting fact is that Jupiter has 4 large moons. Which are known as the Galilean moons. They were named Io, Europa, Ganymede and Callisto. The first mission that went to Jupiter was Pioneer 10 in 1973 and later

The terrestrial planets are Mercury, Venus, Earth, and Mars. These four planets are the planets that are closest to the sun. Terrestrial means earthlike; therefore, these planets are all earthlike because they have a solid ground. The terrestrial planets are the middle school years. The knowledge learned here orbits the sun. If the knowledge learned at the sun is not retained, a student may have a