Nasa’s Dart mission successfully smashes spacecraft into an asteroid in the first-ever 'planetary defense test’. The aim being to see if a large asteroid hurtling towards Earth could be diverted. Apple says it’s now started making its new handset in India in a shift from its China supply chains and we find out about the world’s first fully-biodegradable backpack.

Also in this episode:

• More than half of the world's palm trees in danger
• Discovery of an ultra-rare diamond suggests Earth’s mantle has oceans’ worth of water hidden inside
• Research finds family ties give animals reasons to help or harm as they age
• Drinking two to three cups of coffee a day linked with longer lifespan
• Mars dust watches are now a thing

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