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I pushed eight free AI chatbots to their limits to find the best AI chatbots of 2026. To explore our top picks, check out ZDNET's chatbot-by-chatbot guide.

On Feb. 4, 1995, astronauts aboard the space shuttle Discovery launched an itty bitty satellite called an Orbital Debris Calibration Sphere into orbit around the Earth. When you purchase through links ...

Feb. 6, 2026 Inspired by the shape-shifting skin of octopuses, Penn State researchers developed a smart hydrogel that can change appearance, texture, and shape on command. The material is programmed ...