Number (0): Everything in this space must add up to 0. The answer is 3-0, placed vertically.
Madeleine Finlay sits down with science editor Ian Sample and science correspondent Nicola Davis to discuss three eye-catching stories, including the impact of a powerful psychedelic on depression, answers on the death of Russian opposition leader Alexei Navalny, and an explanation to the mystery of why humans have chins
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Why was Trump's son-in-law Jared Kushner part of the bid?
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