Why are birds the only dinosaurs still alive today? Rare fossil discoveries are revealing the secrets of bird evolution, telling the story of how some resilient feathered dinos became the vast array ...

Happy Groundhog Day! Punxsutawney Phil predicts our weather forecast. What will be the fate of our changing seasons?

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Nearly 70 people presumably died in a fatal midair collision between an American Airlines regional jet and an Army helicopter near Washington, D.C., on Jan. 29 Among those who died in the crash ...

Sixty-seven people died in a fatal midair collision between an American Airlines regional jet and an Army helicopter near Washington, D.C., on Jan. 29 Among those who died in the crash, which occurred ...