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An extremely well preserved fossil feather could reveal why some birds survived the dinosaur-killing asteroid, and others did not.

Sports journalist Sabreena Merchant says culture war issues related to race and trans athletes threaten to overshadow exceptional play on the WNBA court.

Barbara Keating died aboard one of the planes that hijackers slammed into the World Trade Center. Her remains were finally identified last year, and her family is gathering for a long-delayed funeral.

Dr. Rupa Narra is a U.S. pediatrician who arrived in the Democratic Republic of Congo to help care for stricken children. Nothing could have prepared her for what she'd face.

Sept. 11 represented a new kind of national security threat, and a new national security architecture was created to confront it.

President Trump tries to incentivize voters by promising $5,000 to Americans if the GOP wins the midterms. And, young conservatives reflect on the party one year after Charlie Kirk's death.

The death of Charlie Kirk was seen as a rallying call for young conservatives. One year later, the movement is wrestling with questions about its future.

President Trump promised to send every adult citizen $5,000, but only if Republicans maintain control of Congress in the midterm election, drawing a strong response from House Democrats.

The European climate service Copernicus said the Earth just sweltered through its hottest month on record in August. Scientists said the heat surge is mostly due to human-caused climate change.

For nearly two minutes, one of the pilots of the Amazon cargo plane that careened off a Miami runway repeatedly warned his counterpart they were going too fast, according to flight information.