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A decades-old mystery about Saturn has finally been solved thanks to the James Webb Space Telescope. Scientists discovered that Saturn’s changing “rotation rate” was never caused by the planet speeding up or slowing down, but by powerful winds high in its atmosphere. Webb’s unprecedented observations revealed that Saturn’s northern lights actively heat the atmosphere, creating winds that generate electrical currents, which then power the aurora all over again in a self-sustaining cycle.
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Using cannabis edibles and alcohol together may make drivers far more impaired than either substance alone, according to new research from Johns Hopkins. Even more concerning, common field sobriety tests often failed to detect the cannabis-related impairment.
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Scientists have discovered Labrujasuchus expectatus, a bizarre crocodile relative that looked more like an ostrich-like dinosaur than anything resembling a modern crocodile. It walked on two legs, had tiny arms, and sported a toothless beak—an unexpected combination for a member of the crocodile lineage.
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A newly discovered raptor-like dinosaur from Patagonia is changing how scientists think about ancient predators. Named Kank australis, the 70-million-year-old dinosaur appears to have hunted fish much like modern herons, using a long, flexible neck and specialized vertebrae adapted for swift, precise movements.
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A major research study is challenging one of evolution’s most influential ideas: that most genetic changes that become permanent are essentially neutral. Researchers at the University of Michigan found that beneficial mutations are actually far more common than scientists have long assumed. The puzzle is that these advantageous mutations rarely spread through entire populations. Their answer? Nature keeps changing the rules.
