Should we kill animals for conservation?
May 6, 2026 - 12:39
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With more than 70% of its surface covered in water, Earth is rightly known as the "blue planet". But where did this water - so essential to life - originate? While some theories suggest that hydrogen was delivered to Ear...
What's the origin of water on Earth? is an episode from Oxford Sparks Big Questions by Fiona Jones. With more than 70% of its surface covered in water, Earth is rightly known as the "blue planet". But where did this water - so essential to...
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Published May 14, 2025, 14:31 long, audio available.
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