This week we bid farewell to the MESSENGER spacecraft and everything it's revealed about the smallest and closest planet to the Sun, Mercury.We also learn that caffeine is the world's most widely used psychoactive drug, and that scientists are using zombie bacteria stuffed with silver as an antimicrobial Trojan horse.
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View all episodesBy Chris Lassig, Stuart Burns and Claire Farrugia and others.
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Mercury, caffeine, and zombie bacteria
This week we bid farewell to the MESSENGER spacecraft and everything it's revealed about the smallest and closest planet to the Sun, Mercury.We also learn that caffeine is the world's most widely used psychoactive drug, and that scientists are using zombie bacteria stuffed with silver as an antimicrobial Trojan horse.