Terrifying History on Instagram: "On September 11, 2001, at 9:03 a.m., United Airlines Flight 175 struck the South Tower of the World Trade Center. The impact was broadcast live on television, confirming to millions of viewers that the earlier crash into the North Tower was not an isolated accident but part of a coordinated terrorist attack on the United States. The Boeing 767 hit the South Tower between the 78th and 84th floors at a speed of approximately 590 miles per hour. The collision insta

wtc on Instagram: "Mark Gurrer's 9/11 footage showing the hijacked Flight 175 crashing into the second World Trade Center tower at 9:03 a.m. between floors 77 and 85. United Airlines Flight 175 was the second plane hijacked on September 11, 2001, and it crashed into the South Tower of the World Trade Center. The aircraft, a Boeing 767, struck the building between the 77th and 85th floors. The impact caused the South Tower to collapse 56 minutes later at 9:59 a.m. United Airlines Flight 175 carri