In a special Tech & Science Daily episode to mark Earth Day, we explore the hidden secrets beneath the world’s surface with astronaut Jeremy Hansen, from the Canadian Space Agency.
As part of Jeremy’s cave training with the European Space Agency, he has ventured deep underground rocky caves in Sardinia.
The skill and equipment required means not everyone can experience this mysterious place… until now.
Jeremy relives his journey through the caves, explains their relevance for astronaut training and how this -along with space travel- can help protect our planet.
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