Stardust Solutions says its tiny spheres can reflect the sun’s rays without harming people or the environment. Critics say private companies have no business altering Earth’s atmosphere.
Category: Sunlight
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A Voyage to Bring Norway’s Lighthouses Into the 21st Century
More than 2,000 navigational beacons, big and small, oversee the nation’s 60,000-mile-long coast. Now they need an upgrade.
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How to Apply Sunscreen, Head to Toe, Like an Expert
And other essential questions about protecting your skin from the sun, answered by experts.