On April 1, the staff of the CDC's Childhood Lead Poisoning Prevention Program was terminated as part of the agency's ...

New research shows that penguin guano in Antarctica is an important source of ammonia aerosol particles that help drive the ...

And arguably towering over them both is the Indianapolis 500, being held this year for the 109th time. America's oldest race is also one of its toughest: The track may have just four turns, but the ...