The SunThe sun is the largest object in the solar system. It is a medium-sized star and there are many other similar stars in the universe. Although it is only a medium-sized star, it is large enough to contain more than a million Earth stars if it were hollow. The temperature of the sun is far too high for any living being to withstand. On the surface it is 10,000 degrees Fahrenheit and at the core it is an astonishing 27,000,000 degrees Fahrenheit. But don't worry, we are over 90 billion miles away, the sun could never reach us, at least not yet. The Sun is still a middle-aged star and later in its life it will become a red giant. At this point it will become larger and closer to us, causing a rise in temperature and most likely the end of the world as we know it, but this won't happen for some time. But the sun is not our enemy, if it Without this big ball of burning gas, there would be no life at all on this planet. We need his warmth, his light and his energy. Without these elements, our planet would be frozen like a large ice cube and there would no longer be any signs or traces of life. In total, the sun provides us with about 2 pounds of energy each day. Yes, that's right, only 2 pounds. The sun evaporates water from Earth's lakes, streams and rivers. It also warms the earth and cools it at the same time. Without Earth's atmosphere to protect us from the sun's ultraviolet rays, we would be toast. This is a bit like how the greenhouse effect occurs. The greenhouse effect occurs when Earth's atmosphere traps heat from the sun and lets sunlight heat plants, while preventing much of the heat from escaping. Likewise, the atmosphere allows sunlight to pass through to the earth's surface. Sunlight warms the earth, but the heat it creates cannot easily pass through the atmosphere into space. Now what's happening in the sun? When we look up, we just see a luminous object that warms us, sometimes gives us sunburn and, on the contrary, enlightens us. The sun is a mass of incandescent gas, a gigantic nuclear furnace where hydrogen is transformed into helium at a temperature of several million degrees. The sun is so hot that everything on it is a gas. About 75% of the sun is hydrogen, about 23% is helium, and the rest is iron, copper, aluminum, and about 70 other elements that are common in middle of paper.... . . like Stonehenge, to see the shadow of the sun and indicate the time of day. The ancients also used the sun to indicate directions, they knew that it rose in the east and set in the west every day, and that a whole day was the time it took for the sun to move from one side of the horizon to the other. Ancient calendars were based on the phases of the moon. The phases occur because sunlight reflected from the moon is seen at different angles as the moon circles the earth. Even today, the sun plays an important role in people's observation and navigation. Surveyors can use the sun to calculate their own and other positions on earth. Well, that's a summary of the sun. Even though this essay has shed light on some real facts about the sun, there is still a lot we don't know about the sun. Some things we don't even know about the sun and may never know, but what we do know is good. We know it's the largest object in the solar system, it's the size of a million people and