Astronomers have detected mysterious X-ray signals coming from a nearby white dwarf star for more than 40 years. We may now know where they’re coming from – the death throes of a planet being torn to ...

In the cold dark of the constellation Ophiuchus, a faint, wraithlike shell of gas is quietly advertising the fate that awaits our own Sun. Astronomers call it the Little Ghost Nebula, a planetary ...

"We might have finally found the cause of a mystery that’s lasted over 40 years." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Using NASA's ...