Bright Light Over Phoenix Is a Giant Balloon

In a near-repeat of an event last month, a high-altitude NASA-supported research balloon floated over Arizona Thursday afternoon, June 11. It was easily visible, to the north, from northern Phoenix.A NASA research balloon photographed from North Phoenix just after sunset on June 11, 2009. Credit: Robert Roy Britt And for those who didn't know what it was, it was oddly bright and suspiciously slow