Our Changing World for Thursday 28 June 2018
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Mapping the world's sea floor
9:07 PM.Seabed 2030 is an international collaboration to map the world's sea floor, much of which is unmapped. Read more Audio
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Asteroids, dinosaurs and international tension
9:06 PM.Astronomer Duncan Steel is an expert in detecting asteroids and comets, and in defending the earth from potential impacts. Read more Audio
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Our Changing World for 28 June 2018
9:05 PM.Seabed 2030 is an ambitious international collaboration to map the world's sea floor, and astronomer Duncan Steel is concerned asbout asteroids hitting earth. Audio
