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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.
May 2, 2024 · It’s why Earth has liquid water and supports life. The average temperature on Earth’s surface is 59 degrees. Compare that with our nearest neighbors. Venus has a temp of 867 degrees, and Mars is a frigid minus 85 degrees. The sun also provides the energy we need to live.
1 day ago · The Sun is the star at the center of the Solar System. It is a massive, hot ball of plasma, inflated and heated by energy produced by nuclear fusion reactions in its core. Part of this energy is emitted from its surface as visible light, ultraviolet, and infrared radiation, providing most of the energy for life on Earth.
2 days ago · 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. It is part of the " observable universe ," the region of space that humans can actually or theoretically observe with the aid of technology.
May 3, 2024 · 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. If you could stick a thermometer into the photosphere, it would read 10,000 degrees Fahrenheit. But the sun’s outer atmosphere—called the corona—reaches a whopping 3.5 million degrees.
Apr 23, 2024 · Nour Raouafi, project scientist for Parker Solar Probe, explains why the Sun’s corona is the source of one of the biggest mysteries in all of space science. So, what does it take to build a probe that can touch the Sun—including surviving temperatures of 2,500 degrees Fahrenheit and barreling through sudden eruptions of solar plasma—and ...
Apr 22, 2024 · The light of daytime comes from our closest star: the Sun. Even though our Sun is kind of an ordinary star, there are a few things that make our Sun quite special. Make Sun paper! Answer your questions: What is a solar eclipse? What causes the seasons? What is space weather? Where does the Sun's energy come from?
