People always want to know what will happen to Earth when the sun eventually swells up as a red giant. For one thing, the expanding sun will turn the inner planets into cinders. It will almost ...

Although we don't have to worry about it for a few billion years, the sun is inexorably dying, the only question is what's left after it's gone.

A darkened planet circling the feeble remnant of a burned-out star about 6,000 light-years from Earth shows what our own solar system will look like at the end of its existence, astronomers say. The ...