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May 6, 2024 · Life on Earth depends on the Sun. Here are just a few reasons why: The Sun’s gravity holds our entire solar system together. Our solar system is even named after the Sun (the Latin word for Sun is “sol”). Heat from the Sun makes Earth warm enough to live on. Without light from the Sun, there would be no plants or animals—and, therefore ...
1 day ago · Why is the Sun's corona so much hotter than the Sun's surface? (more unsolved problems in astronomy) The temperature of the photosphere is approximately 6,000 K, whereas the temperature of the corona reaches 1,000,000–2,000,000 K. The high temperature of the corona shows that it is heated by something other than direct heat conduction from the photosphere. It is thought that the energy ...
4 days ago · Sun, star around which Earth and the other components of the solar system revolve. It is the dominant body of the system, constituting more than 99 percent of its entire mass. The Sun is the source of an enormous amount of energy, a portion of which provides Earth with the light and heat necessary to support life.
May 2, 2024 · The sun also provides the energy we need to live. Plants use green organs in the cells of their leaves—called chloroplasts —to collect the sun’s light. Then the plant changes the light energy into chemical energy. Plants store some of that energy to use later. They store it as complex sugars in the plant’s body.
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May 20, 2024 · The sun is all colors because it’s what we call a black body radiator. Like all stars, it radiates (at some level) along the entire electromagnetic spectrum, including all of the colors of the ...
May 3, 2024 · He told me that our lives depend on the sun. “The sun keeps you warm and powers everything,” Worthey said. “Without it, Earth would be a frozen nightmare.”. The sun is a yellow dwarf star. It’s made of super-hot gases. Since it isn’t solid, the part of the sun we call the surface is really its inner atmosphere—called the photosphere.
May 20, 2024 · The Sun’s gravity even has tangible effects on our own planet. Solar tides, although less pronounced than lunar tides, play a role in the Earth’s tidal system. The gravitational interaction between the Sun, Earth, and Moon leads to variations in high and low tides, influencing marine life and coastal environments.
