Penguin poo helps keep Antarctica cool

Adelie penguins on sea ice off the Antarctic Peninsula Ashley Cooper pics/Alamy Fumes of ammonia rising from piles of droppings in Antarctica’s crowded penguin colonies help boost the formation of clouds, which have a cooling effect by reflecting sunlight away from the surface. “This demonstrates a deep connection between the ecosystem and atmospheric processes,” says Matthew…

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Lululemon beats on Q1 2025 earnings, cuts outlook

Lululemon beat Wall Street expectations for fiscal first-quarter earnings Thursday, but cut its full-year earnings guidance, citing a “dynamic macroenvironment.” As the company navigates tariffs and fears about a slowing U.S. economy, CEO Calvin McDonald said in a news release that “we intend to leverage our strong financial position and competitive advantages to play offense,…

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Black holes could act as natural supercolliders — and help uncover dark matter

As federal funding cuts impact decades of research, scientists could turn to black holes for cheaper, natural alternatives to expensive facilities searching for dark matter and similarly elusive particles that hold clues to the universe’s deepest secrets, a new Johns Hopkins study of supermassive black holes suggests. The findings could help complement multi-billion-dollar expenses and…

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