When the U.S. was born, humanity was still seven years away from balloon-borne flight. Where might we be another 250 years from now, should the nation be fortunate enough to survive that long?

Study pinpoints which rocky worlds could hang on to a life-supporting atmosphere ...

From a chili pepper to a pant-less lion.

The Trump administration selected a controversial Harvard astronomer to lead their new scientific advisory council to study if UFOs may present any national security risks.

The box office is booming, Gen Z is flocking to theaters and aliens are … real? It’s been a curiously seesawing first six ...

Scientists say moons around rogue planets wandering through the galaxy could remain warm enough for life thanks to tidal heating and hydrogen-rich atmospheres. These dark, starless worlds may have had ...