This magazine, founded by Henry R. Luce, was published on a weekly basis in 1936. It ceased publication in 1972, but resumed in 1978 as a monthly magazine, and is still available today. What is it?

The publication described is the iconic American magazine, LIFE. All the key details in the clue align perfectly with its history. It was founded by the influential publisher Henry R. Luce, the mind behind Time and Fortune, and its first weekly issue hit newsstands in 1936. For decades, it was a dominant force in media, chronicling world events and American culture through its groundbreaking use of photojournalism.

LIFE's primary innovation was its emphasis on the photo-essay, using a series of pictures to tell a narrative with more emotional impact than text alone. It employed legendary photographers like Margaret Bourke-White, Alfred Eisenstaedt, and Gordon Parks, whose images became defining symbols of the 20th century. From the horrors of war to the glamour of Hollywood, LIFE's pages provided a visual record of the era for millions of readers.

As described in the clue, the weekly magazine struggled with rising costs and competition from television, ceasing publication in 1972. However, its cultural significance was too great to disappear entirely. It was successfully revived in 1978 as a monthly publication and has continued in various forms since, primarily as a publisher of special commemorative issues and books, ensuring its powerful photographic legacy endures.