The Naked Scientist demistifies Nasa's water discovery on Mars

Nasa scientists say we may be close to finding evidence of some form of life on Mars. But what does this mean for us on planet Earth?

Redi Tlhabi spoke to The Naked Scientist, Chris Smith, about the latest discovery which has heightened our curiosity about extraterrestrial life.

Smith also answered listeners' questions about any science subject under the sun.

Listen to the conversation below:

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Redi spoke to The Naked Scientist about how blood tests could predict how long patients could take to recover post surgery.

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