This photograph is the second in a sequence of four pictures taken the morning of September 11, 2001, by photographer Robert Clark. The image shows United Flight 175, just before it crashed into the South Tower of the World Trade Center, at 9:03 a.m. American Airlines Flight 11 had crashed into the North Tower at 8:46 a.m.
Please click on the image, to enlarge it.
The image above, with the three accompanying images, appeared in a special edition of Life magazine in November of 2001. The sequence of images had originally appeared in Time magazine, in the days after September 11th.
The four pictures can be seen at the following Instagram page:
https://www.instagram.com/p/CTrvjDyrvLs/?img_index=1
(Image © Robert Clark/Aurora Photos, and Time, Inc.)