<blockquote><font class="small">In reply to:</font><hr /><p>Lately Ive seen what I believe to be stars wich pulsate very faint blue lines of electro magnetic energy from all around them,giving them a spinning wheel like look.I dont know anything about the behaviour of stars and was wondering if any one could tell me a bit about what these are.thanks<p><hr /></p></p></blockquote><br /><br />First off, as others have said, it would be useful to know how you are observing these stars. You can see different things about stars if you view them with the naked eye, through a telescope, through a long duration exposure, through filters, or through images published by scientific observatories in non-visible wavelengths.<br /><br />Stars do give off electromagnetic energy, in particular, visible light. And stars tend to be highly dynamic. However, spinning wheel-like formations are not generallyperceptable to the naked eye, or even to very many telescopes -- with the exception of our own Sun, most stars are too far away to make out that kind of detail. So I think you're either seeing something other than a star (such as a nebula, although these do not pulsate; they seem static to the naked eye) or you are seeing stars twinkling in the night sky through a layer of haze. The brightest stars, such as Sirius and Vega, would be good candidates. Sirius is especially notorious for flickering as air currents distort the image. <div class="Discussion_UserSignature"> <p> </p><p><font color="#666699"><em>"People assume that time is a strict progression of cause to effect, but actually from a non-linear, non-subjective viewpoint it's more like a big ball of wibbly wobbly . . . timey wimey . . . stuff."</em> -- The Tenth Doctor, "Blink"</font></p> </div>