The agency’s high-level turnover and conflicting policy decisions on drug oversight have fueled concerns about the leadership of Dr. Marty Makary.Dr. Marty Makary, the F.D.A. commissioner, has faced intense criticism as the agency undergoes top-level turnover in critical areas like drug approvals.

An unusual object orbiting a rapidly spinning star might be a new phenomenon in the universe.An artist’s impression of the lemon-shaped world, which astronomers say would be red because of dust and soot from the carbon in its atmosphere.

Proposed new rules would pull all federal financing from hospitals that continue to provide gender treatments for adolescents.Health Secretary Robert F. Kennedy Jr., with President Trump and Mehmet Oz, the Medicaid and Medicare services administrator, in the White House in September.

Ana Vaz monitored crucial fish stocks in the Southeast and the Gulf of Mexico until she lost her job at NOAA.

Jared Isaacman, the billionaire nominated twice to lead the agency, may draw some lessons from the tenure of another NASA leader in the 1990s.Jared Isaacman, the private astronaut and billionaire entrepreneur, during his second Senate confirmation hearing to lead NASA earlier this month.