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18 de may. de 2023 · Space Science, Stars. Type. Websites. Learn more about the life and death of different types of stars. The site includes illustrations and related links. Go to Website. National Aeronautics and Space Administration.
Stars. Stars are spherical balls of hot, ionized gas, or plasma, held together by their own gravity. Stars are the most fundamental building blocks of our universe. Galaxies, Science, Stars.
The Crab Nebula is an expanding remnant of a star’s supernova first seen by Japanese and Chinese astronomers nearly 1,000 years ago. In this new sonification of the explosion, X-ray wavelengths and brightness in data obtained with NASA’s NuSTAR and Chandra space observatories have been turned into sound. Listen to more sonifications.
27 de jun. de 2019 · The Short Answer: Our Sun is an average sized star: there are smaller stars and larger stars, even up to 100 times larger. Many other solar systems have multiple suns, while ours just has one. Our Sun is 864,000 miles in diameter and 10,000 degrees Fahrenheit on the surface. Our Sun is a bright, hot ball of hydrogen and helium at the center of ...
1 de feb. de 2019 · The formation of the first stars is unlike that of all other stars. Because the gas composition reflects Big Bang nucleosynthesis, it is devoid of carbon and oxygen. ... The formation of the first star in the Universe. Science 295, 93–98 (2002). 10.1126/science.1063991. Crossref. PubMed. ISI. Google Scholar. 9.
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A star is a huge glowing ball of hot gas, mainly hydrogen and helium. The temperature is so high in its core that nuclear fusion occurs, producing energy. The outward pressure of gas heated by fusion is balanced by the inward pull of gravity, leaving the star in hydrostatic equilibrium. This balance of forces lasts for most of a star’s life ...
