NASA: Perseverance found possible biosignatures in Martian rock
NASA’s Perseverance rover has identified a potential sign of past life on Mars — not a definitive detection, but perhaps the most compelling hint yet. A rock found on Mars last year continues to show signs consistent with past microbial life.
Can AIs suffer?
As first AI-led rights advocacy group is founded, industry is divided on whether models are, or can be, sentient.
The life of plastic
Microplastics have been found in the placentas of unborn babies, the depths of the Mariana Trench, the summit of Everest, and the organs of Antarctic penguins. Here is the story of how plastic contaminates entire ecosystems – and even the food we eat.
Mars once wetter than thought
Thousands of miles of ancient riverbeds have been discovered in the heavily cratered southern highlands of Mars, suggesting the red planet was once a far wetter world than scientists thought.