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Near the Earth's poles a magnificent spectacle of shimmering colored light can sometimes be seen --- the aurora. The aurora is called the (Northern lights) and the aurora austrails (Southern lights); it can appear as bright as a full moon. The aurora usually ap ....

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.... within) the oxygen and nitrogen gas it encounters in the atmosphere, causing it to glow. The flow of plasma from the sun is generally continuos, although it occasionally bursts out of holes in the sun's outermost atmosphere. Massive ejections of plasma have also been shown to accompany solar flares, prominences, and sunspots. It is during these periods of highest solar activity that one is most likely to witness aurorae. The aurora is an ideal subject for the amateur astronomer because no telescope or any other optical apparatus is needed for observing it. It also makes a good subject for anyone who can draw or paint. This beautiful display of ....