Elon Musk stood before a crowd at SpaceX’s sprawling Starbase campus in South Texas and dropped another one in an unending ...

Within a few dozen light years of the Sun, the sky is crowded with stars that could, in principle, host living worlds. I want ...

Between the skyrocketing rent prices that make Manhattan apartments the size of walk-in closets cost as much as suburban ...

A rogue comet from another star system is rewriting the textbook on how cosmic visitors behave deep inside our solar system.