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Astronomy

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  • An Introduction to Astronomy

    You don't have to be a scientist to enjoy astronomy. The basics are easy to learn, and you can apply them to your own stargazing. The sun, the moon, the planets and the stars are all available...

  • How Is Thermal Imaging Used by Astronomers?

    Remote sensing is the process of sensing something without actually having to touch it. Remote sensing in modern technology is using instrument-based techniques to gather data. Thermal imaging is...

  • How to Buy a Star & Name it

    If you are looking for a unique gift idea for Mother's Day, graduating students or a valued teacher or colleague, you may want to consider "buying" a star and naming it after them. By doing a...

  • How to Choose a Telescope and Get Started in Astronomy

    "Telescope" is the first thing that comes to mind when you are thinking about astronomy. Actually, the first thing you need is a pair of binoculars to look at the stars. Most avid star...

  • What is Mercury Made Of?

    Mercury is one of the four rocky planets in this solar system, along with Venus, Earth and Mars. It has an extremely thin atmosphere, which has resulted in numerous craters from collisions with...

  • What are the Clouds of Magellan?

    The Clouds of Magellan are actually two galaxies that can only be seen in the Southern Hemisphere on a very dark night. From Earth with the naked eye, they look like cloudy blobs in the sky....

  • What is the Temperature of Pluto at Night?

    Pluto is extremely cold because it is so far away from the sun and has a very thin atmosphere. Its temperature apparently varies from about -400 degrees to -360 degrees Fahrenheit, but astronomers...

  • About Tools of Modern Astronomy

    A debate is taking place over a Mars photo. The subject of debate is the "face" that shows up on pictures of Mars' Cydonia region. The skeptics claim that it's just sunlight and shadow...

  • How Does Color Indicate the Temperature of a Star?

    Stars gleam in the night sky in colors from red to orange to blue-white, providing stargazers with a veritable rainbow. Many don't realize that this show of colors is a doorway to understanding...

  • How to Know the Chinese Constellations

    Chinese star maps differ greatly from those known in the West, where the constellations were named for figures from Greek mythology. Chinese astronomers and astrologers saw the night sky through...

  • How to Use an Astronomers' Map

    An astronomers' map is a vital tool for anyone who wants to be a stargazer. An astronomers' map includes a wide variety of observable objects that can be seen using a telescope or a pair of...

  • How to Join an Astronomy Club

    Astronomy clubs are great for learning about astronomy and telescopes, and for sharing your knowledge of astronomy and the heavens. Clubs are also a wonderful way to find other people who have an...

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