Is the sun dying?

Without sun's existence, there wouldn't be life on Earth. In the grand scheme of things, however, our sun is simply another star among star among the other hundreds of billions of stars in the universe.Officially, the Sun is a class G2V star- in other words,a main-sequence yellow dwarf have a temperature range of 5,000 to 6,000 degrees Celsius and their mass is about 80-120 percent of the mass of the sun. That means that the Sun is...

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What are Saturn’s Rings Made Of?

Saturn's rings are made of billions of pieces of ice, dust and rocks. Some of these particles are as small as a grain of salt, while others are as big as houses. These chucks of rock and ice are thought to be pieces of comets, asteroids or even moons which were torn apart by the strong gravity of Saturn before they could reach the planet. Galileo Galilei was the first to observe the rings of Saturn in 1610 using his telescope,...

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How the Seasons Work?

It turns out that the elliptical orbit of the Earth has little effect on the seasons. Instead, it is the 23.45-degree tilt of the planet's rotational axis that causes us to have winter and summer. The diagram below demonstrates what happens. In this diagram, you can see the axis of rotation and the equator. The Northern Hemisphere (at the top) is currently experiencing winter, and the Southern Hemisphere is experiencing summer....

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How do orbits work?

We might take it for granted, but why do stars, moons, planets or any celestial bodies constantly move around one another?  What an Orbit Really Is The drawings at the right simplify the physics of orbiting Earth. We see Earth with a huge, tall mountain rising from it. The mountain, as Isaac Newton first envisioned, has a cannon at the top. When the cannon is fired, the cannonball follows its ballistic arc, falling...

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When does sky become space?

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 The Kármán line (Karman line) is an official boundary between the Earth’s atmosphere and space, lying 100km (approximately 62 miles) above sea level. The governing body for air sports and aeronautical world records, Federation...

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Astronomy - July 2013

The world's best-selling astronomy magazine offers you the most exciting, visually stunning, and timely coverage of the heavens above. Each monthly issue includes expert science reporting, vivid color photography, complete sky coverage, spot-on observing tips, informative telescope reviews, and much more! All this in an easy-to-understand, user-friendly style that's perfect for astronomers at any level. Hardcover: 80 pages File...

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Physics for Scientists and Engineers with Modern Physics (9th Ed)

Book Details: Hardcover: 1622 pages Publisher: Cengage Learning; 9 edition (January 17, 2013) Language: English ISBN-10: 1133954057 ISBN-13: 978-1133954057 File Size: 45.0 Mb | File Format: PDF Book Description: Achieve success in your physics course by making the most of what PHYSICS FOR SCIENTISTS AND ENGINEERS WITH MODERN PHYSICS has to offer. From a host of in-text features to a range of outstanding technology resources,...

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Time,Space,Stars and Man-The Story of the Big Bang

Hardcover: 496 pages Publisher: World Scientific Publishing Company (April 2009) Language: English ISBN-10: 1848162723 ISBN-13: 978-1848162723 Most well-read, but non-scientific, people will have heard of the term 'Big Bang' as a description of the origin of the Universe. They will recognize that DNA identifies individuals and will know that the origin of life is one of the great unsolved scientific mysteries. This book brings...

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