Jacques Cousteau

Jacques Cousteau

1910-1997

Ocean explorer and conservationist

Published: September 16, 2025

Jacques Cousteau

Imagine diving into the ocean and breathing like a fish! Jacques-Yves Cousteau (1910–1997) was a French explorer and inventor. The most important thing he did was help people see and protect the underwater world by inventing scuba gear and making films.

Jacques Cousteau

In the 1940s Cousteau and engineer Émile Gagnan built the Aqua-Lung, the first modern scuba system that let people breathe underwater. He sailed the ship Calypso, filmed coral reefs, whales, and storms, and shared these wonders with millions through movies and TV.

Jacques Cousteau

He started the Cousteau Society and warned about pollution and overfishing. Cousteau changed how people thought about the ocean—from scary and unknown to beautiful and worth protecting. You can be an ocean guardian too: learn, pick up trash, and stay curious.

Frequently Asked Questions

When and where was Jacques Cousteau born and when did he die?

He was born on June 11, 1910 in Saint-André-de-Cubzac, France, and died on June 25, 1997.

What was his background before exploring the ocean?

He trained at the French Naval Academy (École Navale) and served as a naval officer before focusing on filmmaking, invention, and ocean exploration.

What was the Calypso?

Calypso was his famous research ship — a converted minesweeper used as a mobile lab, base for expeditions, filming, and scientific work.

Did Cousteau work on underwater habitats?

Yes. In the 1960s he led Conshelf projects that tested living and working underwater in manned habitats to learn more about long-term dives.

What notable books or films did he make?

He produced many documentaries and series and co-created The Silent World, a book and film that helped introduce underwater life to a wide audience.

Who were his family and did they help his work?

He married Simone Melchior; their sons Jean-Michel and Philippe joined expeditions and filmmaking. Philippe died in 1979; Jean-Michel has continued ocean advocacy.

Did he receive official recognition for his work?

Yes. Cousteau received numerous honors and awards from governments, scientific organizations, and film institutions for exploration and conservation.

Is his legacy still present today?

Yes. His films, inventions, the Cousteau Society, and ongoing ocean advocacy continue to influence marine science, education, and conservation efforts.