Sonic booms are set to ring out above us once more as supersonic flights will be here by the end of the decade, according to United Airlines. Arctic sea ice is ‘thinning up to twice as fast as previously thought’. Twitter finally launches ‘undo tweet’ option – but you will have to pay to use it. Charlie Bit My Finger NFT sale pays for sending brothers to university. Puppies are born ready to communicate with people, research suggests. And, causing a stir online - Freddo, is that you? a very cute ‘chocolate frog’ discovered in Papua New Guinea jungle by scientists. 

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