Brian Steinberg Senior TV EditorAmazon founder Jeff Bezos and three other passengers successfully reached the lower regions of space in New Shepard, a re-usable craft developed by the entrepreneur’s Blue Origin aerospace company, a new step in efforts to commercialize space flight and open potential trips to the cosmos to a broader array of visitors.Bezos was joined in his quest by his brother, Mark Bezos; Wally Funk, an 82-year-old who previously took part in NASA’s Mercury program, but was