The probe currently whizzing towards Red Planet has a ‘head’ equipped with laser eyes and a super-strength vaporiser to hunt for Martian chemicals and organic compounds. Fake five-star Amazon reviews offered on sale for the price of a pizza, investigation finds. Top WHO doctor says super-fast Covid tests ‘will pave return towards normality’ but those without a vaccine passport will be able to travel less. Harvard scientists think a mega-asteroid that wiped out Earth’s dinosaurs ‘came from edge of Solar System’, helped by Jupiter’s gravity field. Swimming robot investigates impact of global warming on break-up of world’s biggest iceberg. Researchers find tropical wasps babysit for neighbouring nests.

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