Citizen scientists needed to discover elusive black holes

Could you help scientists uncover the mysterious world of invisible black holes? Become a Black Hole Hunter and you'll be taking part in scientific research that has the potential to reveal more about one of space's most ...

Rich nations need to ditch fossil fuels by 2040: scientists

Rich countries need to stop using coal by 2030 and oil and gas by 2040, with poorer nations following a decade behind, to give the world a chance of limiting warming to 1.5C, climate scientists told the UN Friday.

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