Tag Archives: Sun

What keeps the sun shining and how long can it continue to do so?

The Sun is a huge ball of extremely hot, glowing gases.  It is considered as the star nearest to the Earth.  It’s mass is equivalent to 333,420 earth. The surface temperature of the sun is estimated to be between 5 000 oC to 6 000 oC.  Temperature at the core is as high as 14 …

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Why do sunsets look red?

During the evening, when the sun is near the horizon we may see a beautiful sunset.  The reds and oranges of a sunset are caused by the filtering action of the sky. Sunlight, as we know, is made of many colors.  We can see the colors that make up sunlight when we look at a …

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What are stars made of?

Stars are formed from gigantic masses of hot glowing gases.  Hydrogen and helium are the most common gases in a star.  In the clearest night sky you might see a few thousand stars with unaided eye.  Every bright star is a sun, like our own sun. Scientists tell us that a star is a huge …

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What makes the ring around the moon?

The ring around the moon or sun is caused when the rays of light are bent and reflected by clouds of ice crystals high in the sky.  A big, shining ring of light sometimes appears around the moon.  The ring is not really around the moon—it only seems to be: The “ring around the moon” …

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What are the Northern Lights?

The Northern Lights, or Aurora Borealis, are the magnificent display of colored lights that occurs near the earth’s north Magnetic pole. If you live far enough north, you may have seen the magnificent display of glowing, flickering colored lights high in the clear night sky. The northern lights are one of nature’s most dazzling shows.  …

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What is a Quasar?

The mysterious quasars (KWAY sahrs) are intensely bright, star like objects on the edge of the universe.  One of the big mysteries about the quasars is what they are.  Not stars and not galaxies (groups of stars), quasars have baffled scientists since they were discovered in the early 1960s. A quasar is many times brighter …

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