Since President Donald Trump took office in January, artificial intelligence and quantum-information science have sat at the top of his administration's scientific priorities. And they don't seem to be leaving any time soon. Trump has ordered his advisers to ensure that the nation is "the unrivaled world leader" in AI and quantum information. The subjects are listed first and second on the administration's list of research and development priorities.
The biggest science story this year was the political upheaval in the United States. Funding cuts, academic lay-offs and vaccine-sceptic policies have widely been seen as an attack on science, according to critics of President Donald Trump's administration. The resulting damage to science could last way into the future. But, there were also plenty of positive developments in 2025 that offer hope for the coming years.
Alán Aspuru-Guzik takes a lot of calls these days from scientists considering an exit from the United States. Aspuru-Guzik, a theoretical chemist, left Harvard University, in Cambridge, Massachusetts, during Donald Trump's first term as US president, from 2017 to 2021, to join the University of Toronto in Canada and hasn't looked back. "I'm the happiest guy here," he says. Aspuru-Guzik left because he didn't agree with Trump's politics and policies.