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How old is the earliest trace of life on Earth?

A recent conference sees doubts raised about the age of the oldest signs of life. The question of when life began on Earth is as old as human culture. “It’s one of these fundamental human questions: When did life appear on Earth?” said Professor Martin Whitehouse of the Swedish…

New adhesive surface modeled on a remora works underwater

It was tested for its ability to adhere to the inside of the digestive tract. Most adhesives can’t stick to wet surfaces because water and other fluids disrupt the adhesive’s bonding mechanisms. This problem, though, has been beautifully solved by evolution in remora suckerfish, which use an adhesive disk…

Apple brings OpenAI’s GPT-5 to iOS and macOS 

It’s unclear exactly how GPT-5’s new approach to model-switching will work here.  OpenAI’s GPT-5 model went live for most ChatGPT users this week, but lots of people use ChatGPT not through OpenAI’s interface but through other platforms or tools. One of the largest deployments is iOS, the iPhone operating…