finally

‘Clean power meets all increases in global electricity demand’: Renewable energy finally overtakes coal as the world’s main source of electricity

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Ember graph of global power generation showing renewable energy surpassing coal

Renewable energy now accounts for more of the world’s electricity than coal It accounts for 33.8% of electricity generation compared to 33% for coal. Solar power is meeting 75% of the world’s electricity demand growth and is a key driver here. Sustainability Week 2026 This article is part of a series of sustainability-themed articles we’re … Read more

Why do crabs walk sideways? Scientists finally found the answer

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earth snap

Ask anyone to explain how crabs move and you’ll get the same answer. It’s “horizontal”. It’s the distinctive feature that makes a crab unmistakably a crab. But there are questions that have actually puzzled biologists for decades. When did crabs start doing this, how often did it evolve, and what did it do to crabs … Read more

NASA’s next great observatory, the Nancy Grace Roman Space Telescope, is finally completed

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A telescope with a triangular top wrapped in foil stands next to scaffolding, and people in clean white suits observe it under green light.

GREENBELT, Md. — On Tuesday (April 21) here at NASA’s Goddard Space Flight Center, I saw scientists standing proudly around a metal device with towering orange solar panels and a gleaming silver pedestal. The Nancy Grace Roman Space Telescope is finally completed, shining brightly before my eyes in a sterile white clean room. Julie McEnery, … Read more

Scientists have finally measured the amazing power of a black hole’s jet

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Black holes are one of the most extreme objects in the universe. It can propel matter outward at near-light speeds in powerful plasma beams known as jets. These jets are thought to be one of the most energetic phenomena in the universe. Our new work was published today natural astronomychallenges this intuition. It turns out … Read more