A judge has expunged the misdemeanor convictions of a St. Louis couple who waved guns at racial injustice protesters outside their mansion in 2020.

Horse fossils are abundant and widespread across North America. Scientists often use their long history to illustrate how species evolve in response to a changing environment.

Fifteen years after the EPA said greenhouse gasses are a danger to public health, the agency finalized rules to limit climate-warming pollution from existing coal and new gas power plants.