WebSep 4, 2013 · A supernova is a large explosion that takes place at the end of a star's life cycle. On the left is Supernova 1987A after the star has exploded. On the right is the star before it exploded. This article is part of the NASA Knows! (Grades 5-8) series. A supernova is the explosion of a star. It is the largest explosion that takes place in space. WebApr 13, 2024 · Astronomers use these characteristics to classify main sequence stars into categories by color and temperature: O (blue), B (blue-white), A (white), F (yellow-white), G (yellow), K (orange), and M (red), from hottest and biggest to coolest and smallest. Stars at the ends of their lives are out of the main sequence.
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Web1 hour ago · Chastain broke out as one of NASCAR.'s boldest young stars in 2024 and created one of the most memorable moments in the history of the 76-year-old track last season. WebSep 23, 2024 · A star is a sphere of gas held together by its own gravity. The closest star to Earth is our very own Sun, so we have an example nearby that astronomers can study in detail. The lessons we learn about the Sun can … birchwood forest lake
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WebWhat is a star? A star is a big ball of gas. It is not star-shaped. Stars give off heat and light. How is a star made? Stars are born in nebulas. Nebulas are clouds found in space. They are made of gases and dust. A star's color … Web1 hour ago · Chastain broke out as one of NASCAR.'s boldest young stars in 2024 and created one of the most memorable moments in the history of the 76-year-old track last … Web22 hours ago · Alerts. James Mangold, along with Dave Filoni and Sharmeen Obaid-Chinoy, are the next Star Wars movie directors. Image: Disney. I can’t stop thinking about it. Since … dallas texas burn injury lawyer