Scientist Pete Kelsey and his team have 3D-mapped the entire island of Alcatraz, discovering Civil War secrets, prisoner escape routes – and looking at ways to preserve the island for the future.

Armed with robots, lasers, and specialized drones, Pete Kelsey and his team 3D-mapped all of Alcatraz Island, gaining access ...

Alcatraz Island, home to the nation’s most notorious pen, was the site of a crucial civil rights battle 50 years ago. Shutterstock Fifty years ago this November, a group of Native American ...

Here's a look at some of the most famous criminals to get locked up in the island-based prison off the coast of San Francisco. Pictured here in the 1970s, Alcatraz Federal Penitentiary and the ...

The federal prison on Alcatraz Island in San Francisco Bay, the "Rock," was deliberately infamous. It was here that the worst cases in the entire federal prison system were sent. The threat of ...

(CNN) — The future of Alcatraz lies in one man’s hands. In 2023, as sea levels rose around the iconic island in San Francisco Bay, Pete Kelsey — a technologist specializing in 3D data ...