Reagan-era iceberg once twice the size of Rhode Island now faces complete disintegration: NASA

An iceberg that broke off from Antarctica 40 years ago and is one of the largest ever tracked by scientists is on the verge of "complete disintegration," NASA said Thursday.

A-23A was twice the size of Rhode Island when it first detached from Antarctica in 1986 during a year when "Ronald Reagan was President of the United States, and the movie ‘Top Gun’ was setting box office records," the space agency noted.

It is now floating in the South Atlantic between the eastern tip of South America and South Georgia Island.