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Companies say they are close to commercializing cheap perovskite films that could disrupt solar power — but are they too optimistic? Companies say they are close to commercializing cheap perovskite films that could disrupt solar power — but are they too optimistic? A technician working on a commercial sized perovskite-on-silicon tandem solar cell

As artificially intelligent tools for literature and data exploration evolve, developers seek to automate how hypotheses are generated and validated. As artificially intelligent tools for literature and data exploration evolve, developers seek to automate how hypotheses are generated and validated.

Merck’s drug was originally claimed to halve hospital admissions and deaths in people with covid-19, leading some governments to stockpile it as the pandemic continued. Andy Extance looks at the published evidence for its effectiveness

The digital currency has caused any number of headaches for law enforcement. Now entrepreneurs and academics are scrambling to build a better version.

The first 6 months of data are providing rich insights into exoplanets.

Researchers, educators and companies are experimenting with ways to turn flawed but famous large language models into trustworthy, accurate ‘thought partners’ for learning. Researchers, educators and companies are experimenting with ways to turn flawed but famous large language models into trustworthy, accurate ‘thought partners’ for learning. A teacher writes on a chalkboard during a lecture with students

Wei Wang, a computer scientist at the University of California, Los Angeles, found that GPT-3.5 - which powers the free version of ChatGPT - and its successor, GPT-4, got a lot wrong when tested on questions in physics, chemistry, computer science and mathematics taken from university-level textbooks and exams2. \"Are there positive uses?\" asks Collin Lynch, a computer scientist at North Carolina State University in Raleigh who specializes in educational systems. Academics have produced other tools, suchas PyrEval4, created by computer scientist Rebecca Passonneau's team at Pennsylvania State University in State College, to read essays and extract the key ideas. With help from educational psychologist Sadhana Puntambekar at the University of Wisconsin-Madison, PyrEval has scored physics essays5 written during science classes by around 2,000 middle-school students a year for the past three years.

With clinical evidence behind it growing, the combination treatment is moving from the laboratory to patients around the world at record speed, reports Andy Extance

For Nick Goldman, the idea of encoding data in DNA started out as a joke. It was Wednesday 16 February 2011, and Goldman was at a hotel in Hamburg, Germany, talking with some of his fellow bioinformaticists about how they could afford to store the reams of genome sequences and other data the world was throwing at them. He remembers the scientists getting so frustrated by the expense and limitations of conventional computing technology that they started kidding about sci-fi alternatives. \"We thought, 'What's to stop us using DNA to store information?'\"