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| | Ask Dr. Ruehl! |
 | | Such mirror-- or "double"-- images result from a phenomenon known as the "gravitational lens effect." This occurs when a massive object, such as a galaxy, or fl hole is positioned near the line of sight of light being emitted from a distant celestial object, whether it be a nebula or another galaxy. |
 | | Indeed, in 2001, Dr. David Rusin of the University of Pennsylvania announced the extraordinary discovery of a six-fold gravitational lensing. |
 | | And on a more mystifying level, a study by Dr. Steven Broudie, professor of philosophy at the University of Maryland, determined that an inordinate number of train travelers have cancelled their reservations just prior to a crash, suggesting some type of precognitive ability at work. |
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