In a crucial year for the climate, award-winning Guardian environment editor Fiona Harvey reflects on 30 years of Cops and meets the politicians, activists and scientists...
How big is the universe ... compared with a grain of sand?
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'You'll never get your head around...
Dozens of phone calls have been made to the Perth Observatory after people reported 'a giant fireball' above south-west Australia. The fireball is believed...
This superpit outside Kalgoorlie, Western Australia, is one of the world's largest open-pit gold mines.
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The operator of the mine,...