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As the Trump administration threatens to strip accrediting bodies of their power, many are scrambling to purge diversity requirements.

David Geier has been hired as a senior data analyst at H.H.S. According to several people, he will examine any potential links between vaccines and autism that were debunked long ago.

The showdown catapults the interstate abortion wars to a new level.

Invoking an obscure provision, it said power plants and others could write to ask for exemptions to mercury, arsenic and other restrictions and that "the president will make a decision."

The best-selling author chatted with The Times's global health reporter about the past, present and troubling future of the world's deadliest infectious disease.

Researchers in New Zealand have recorded what they believe is the first instance of a shark actively making noise.

After more than a decade of mapping the stars, the European spacecraft will shut down on Thursday. But its legacy lives on.

State health officials worry that declining vaccination rates have left many communities vulnerable nationwide.

Federal officials cited the end of the Covid-19 pandemic in halting the research. But much of the work was focused on preventing outbreaks of other pathogens.

The James Webb Space Telescope identified the lights in the distant planet's atmosphere, which could not be seen by earlier telescopes or spacecraft.