Add Yahoo as a preferred source to see more of our stories on Google. 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 ...

A rare nova explosion will soon be visible in the Earth’s nighttime sky, according to officials at NASA. The event, which could occur anytime between now and September, is creating a buzz within the ...

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've heard of a supernova. But have you ever seen one? Now's your chance. Just look up in the sky over the next few nights with a good pair of binoculars or telescope, according to Massachusetts ...

Some of the most massive and influential stars in the universe are OB stars. These blue giants, many times more massive than ...

A new study reveals an intriguing possibility: asupernova explosion might have sent a surge of cosmic rays toward Earth around 10 million years ago, with consequences etched in ocean rocks. The ...

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, ...