PASADENA, California, March 29 -- The California Institute of Technology issued the following news: Before joining the faculty this academic year as assistant professor of astronomy, Kareem El-Badry made headlines for debunking other researchers' claims to have discovered black holes. A number of celestial phenomena that suggest the presence of a black hole--which is, as its name suggests, not visible--can be explained in other ways. For El-Badry, debunking black hole claims is all part of a qu  more