I f you’re out running errands or driving around town, it’s not uncommon to pull your car over for the flashing lights and sirens of an ambulance whizzing by you. These emerge ...

For the first time, astronomers have spotted a star that exploded not once, but twice. A new image of a roughly 300-year-old supernova provides visual evidence that some dying stars undergo a double ...

On the night of July 15, a striking conjunction of the moon, Saturn, and Neptune will unfold in the eastern sky, offering stargazers across the United States a chance to witness three celestial bodies ...