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Image copyright NASA/JHUAPL/SWRI/Roman Tkachenko Image caption The Kuiper belt object Arrokoth is a pristine remnant of planet formation in action Scientists say they have “decisively” overturned the prevailing theory of how planets in our Solar System formed. The established view is that material violently crashed together to form ever larger clumps until they became worlds. …

Image copyright Getty Images Red deer in the Highlands are evolving because of climate change, a 45-year study has found. Scientists say they have seen genetic changes in birth patterns of deer on the Isle of Rum. Not only do warmer temperatures encourage deer to give birth earlier in the year, it has also meant …

Canada’s Green party has admitted to manipulating a photograph on its website to make it seem as if the party leader was using a reusable plastic cup and metal straw instead of a disposable paper cup. The image shows leader Elizabeth May, smiling and holding a plastic cup emblazoned with the Green party logo and …