A roughly 160-metre-wide asteroid is travelling towards Earth and is classified by astronomers as ‘potentially hazardous’. 

Scientists find a ‘cannibal human ancestor’ species and why Nasa astronauts are recycling 98% of water from their urine and sweat. 

Also in this episode:

• Dolphin mums use baby talk to call to their young 
• Prison terms for sharing or creating explicit images without consent
• Nasa finds key life building block carbon molecule in space
• Facebook owner Meta launches virtual reality subscription service
• Is this the reason the megalodon became extinct?
• An Australian dragon comes ‘back from the dead’

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