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BBC News - Science & Environment

1. Supernova 1987A: 'Blob' hides long-sought remnant from star blast
   A three-decades-long search may finally have located the hot object left behind by a famous supernova.
2. New hope for one of world's most endangered reptiles
   The discovery of baby crocodiles in a river in Nepal is raising hopes for the future of the gharial.
3. Australia fires: Sydney blanketed by smoke from NSW bushfires
   People in Sydney woke up to a city shrouded in smoke on Tuesday, as bushfires rage across the region
4. Attenborough: People have shown they care about plastic pollution
   Sir David Attenborough says people's response to plastic pollution has been encouraging
5. Attenborough: World 'changing habits' on plastic
   "I think we're all shifting our behaviour," the BBC broadcaster says as he wins a prestigious award.