"It was not like anything I had ever seen before," Alejandro Otero says. It turned out his home was hit by debris from the International Space Station that had been circling the Earth for three years.
The agency stressed the material is inactivated and that the findings "do not represent actual virus that may be a risk to consumers," but it's continuing to study the issue.
The Chinese government froze meaningful efforts to trace the origins of the coronavirus pandemic, despite publicly declaring that it supported an open scientific inquiry, an Associated Press investigation has found.
In a parking lot and on San Francisco Bay, NPR witnesses two different tests for solar geoengineering to tackle climate change. With much science unsettled, experts say regulations aren't keeping up.
Climate change is heating oceans faster than the world's coral reefs can handle. So scientists are breeding corals that can withstand hotter temperatures — but only to a point.
Biomedical engineer Rachel Lance says British scientists submitted themselves to experiments that would be considered wildly unethical today in an effort to shore up the war effort.
Higgs predicted the existence of the Higgs boson particle, helping explain how matter formed after the Big Bang. His death at 94 was announced by the University of Edinburgh, where he was a professor.