The giant revolving artwork has been a "brilliant" boost for visitor numbers to a cathedral.
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Earth
The discovery may help us learn more about the Earth's internal structure and how it was formed.
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Roger Harrabin
BBC environment analyst
A major report says the West's high consumption of meat is fuelling global warming.
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July this year was the warmest month ever observed worldwide, satellite data has confirmed.
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Roger Harrabin
BBC environment analyst
Scientists are poised to deliver a stark condemnation of the damage people are wreaking on Earth's land surface.
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Matt McGrath
Environment correspondent
There's a growing consensus that the next year-and-a-half are key in the battle against rising temperatures.
Read moreHow YouTube converted people to flat Earth
All around the world, there are conspiracy theorists who believe the Earth is flat. And their community seems to be growing, judging by attendance at flat Earth conferences and events. Flat Earthers say YouTube was key in helping them spread their message, but the Google-owned company says it's taking action to prevent conspiracy videos from reaching large numbers of people. So how - and why - has YouTube enabled the flat Earth community to grow? Video journalist: Marco Silva
Amazing photos of the night sky revealed as part of the Astronomy Photographer of the year competition.
Imran Rahman-Jones
Newsbeat reporter
Green bloggers give their top tips to be more eco-friendly.
Read moreThe World Meteorological Organization is celebrating World Meteorological Day. Here are a few facts about the Sun, Earth and weather, including a look at the aurora .