Add Yahoo as a preferred source to see more of our stories on Google. Sirius is a blue giant, which burns through its fuel quickly and lives only a relatively short period of time. Yet it has a white ...

The name 'blue lurker' might sound like a villainous character from a superhero movie. But it is a rare class of star that NASA's Hubble Space Telescope explored by looking deeply into the open star ...

This NASA/ESA Hubble Space Telescope image features a glittering blue dwarf galaxy called Markarian 178 (Mrk 178). The galaxy, which is substantially smaller than our own Milky Way, lies 13 million ...

For the first time, a NASA X-ray space telescope has captured the innermost surroundings of a white dwarf star. Here's what ...

This is a great question. It hinges on the fact that while we often say that white dwarfs are the remnants of Sun-like stars, the term Sun-like in this case is admittedly a bit of an ...