After 44 years of sailing nearly 1.4 million miles from the Arctic Circle to the Southern Ocean, ferrying scientists to some of the 20th century’s greatest ocean discoveries, the Knorr pulled into port Wednesday morning for the last time.

After 44 years of sailing nearly 1.4 million miles from the Arctic Circle to the Southern Ocean, ferrying scientists to some of the 20th century’s greatest ocean discoveries, the Knorr pulled into port Wednesday morning for the last time.