tumbling-perseid.jpg This image shows a Perseid meteor tumbling as it enters the Earth's atmosphere, resulting in a sinuous trail. Photographed after midnight UTC on the morning of August 13th, 1993 about 15km northeast of Neuchatel, Switzerland, on Kodak Ektar 1000 film with an ancient Nikkormat with a Nikon f/1.4 50mm lens at full aperture in a multi-minute exposure. The meteor is travelling left to right. The image was scanned from a 3x4 cm region of a 10x15 minilab print and contrast stretched with CPI Image-In to approximate the appearance of the original print. The image is corrected to screen gamma--if you're viewing it on a system (such as SGI) which performs its own gamma correction, try using "xv" and use ColEdit/Intensity to set Gamma to about 0.5. This image is in the public domain. -- John Walker, http://www.fourmilab.ch/