Space
A small object beyond Pluto may have a thin atmosphere
A brief stellar eclipse hints that this 2002 XV93 has a thin atmosphere. It would be a first for any solar-system body farther from the sun than Pluto.
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Oceans
Explainer: What are corals?
Though they can look like rocks or plants, corals are animals. Most are made up of colonies of individuals called polyps.
Experiment
Humans
Experiment: Can humans recognize AI-generated images?
An AI-made picture of an animal or flower might seem harmless, but fake images of people or events can spread misinformation.
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This tool-using cow stunned scientists with her smarts
Veronika the cow scratches hard-to-reach body parts using a brush. This feat is forcing scientists to rethink which animals can use tools.
