In June 2007, a group of Russian geologists returned from a six-week voyage on a nuclear icebreaker 50 Let Pobedy, the expedition called Arktika 2007.

In response to an 1834 revelation Smith led a small paramilitary expedition, later called Zion's Camp, to aid the Missouri Mormons.

Bears are among the complications of conducting a multinational scientific expedition called Sheba, or Surface Heat Budget of the Arctic Ocean.

The expedition, called "Love Himalaya," is sponsored by Youth With a Mission, an international group founded in 1960 that sends about 25,000 volunteers on short-term missionary projects each year.

His second spaceflight was as Commander of another long-duration expedition called Mir EO-25, which was launched by the spacecraft Soyuz TM-27.

The expedition called for the region to be protected at least until its ecology had been investigated.

A documentary motion picture about the expedition, also called Kon-Tiki was produced from a write-up and expansion of the crew's filmstrip notes and won an Academy Award in 1951.

In 1946, Admiral Byrd and more than 4,700 military personnel returned to Antarctica in an expedition called Operation Highjump.

In 1957, with the cold war becoming increasingly intense, the Navy led a huge expedition called Operation Deep Freeze that charted vast regions of the continent.

This expedition, called "Searching for Wisdom" has already birthed many Midway miracles (see highlights).