Space Shuttle Columbia tragedy.
February 1, 2003, this course of events, the NASA never forget it. And believe that the world would not forget it. When the loss of the seven astronauts were due to return to Earth. But a problem occurs when lack of contact while attempting a landing and found nothing wrong in the shuttle until the space shuttle shattered into pieces like a meteor falling. All seven astronauts were composed of six people in the United States, Israel, one man died. After that event, the world continues to mourn as well.