25 years ago, a NASA astronaut witnessed the tragic 9/11 attacks from space. Here's what he saw.

25 years ago, a NASA astronaut witnessed the aftermath of the 9/11 attacks from space and captured a haunting…

An astronaut witnessed the 9/11 attacks from space, capturing a haunting image of smoke over New York City. Frank Culbertson, aboard the ISS, photographed the massive plume after the World Trade Center towers…