Astronomers have detected mysterious X-ray signals coming from a nearby white dwarf star for more than 40 years. We may now ...

The universe showcases its beauty ... serves as a stellar nursery for new stars. The Helix Nebula, 650 light-years away, resembles a cosmic eye formed by a dying star’s outer layers shedding.

This color-composite image of the Helix Nebula was created from images obtained using the the Wide Field Imager, an astronomical camera attached to the 2.2 meter Max-Planck Society/ESO telescope ...

In this image from NASA's Spitzer Space Telescope, "cometary knots" on the Helix Nebula show blue-green heads ... and eerie resemblance to a giant eye. In this false-color image, NASA's Hubble ...