An explosion in space so massive you'll be able to look up and see it in the night sky without a telescope could happen "any day now," a NASA expert said Wednesday. The stellar burst, called a nova, ...

Astronomers are witnessing a celestial drama unfold in the V Sagittae star system, located 10,000 light-years away. A dense ...

The stars aren’t fixed and unchanging, unlike what many ancient people thought. Once in a while, a star appears where there wasn’t one before, and then it fades away in a matter of days or weeks. The ...

You won't need solar eclipse glasses for this one. An explosion in space so massive you'll be able to look up and see it in the night sky without a telescope could happen "any day now," a NASA expert ...