After tracking a puzzling X-ray signal from a dying star for decades, astronomers may have finally explained its source: The ...

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 ...

And that makes this a perfect excuse for a big 3D printer — you can ideally make a helix model in your computer and then print out the exact same shape. We’d like to see a lot more detail ...

In this image from NASA's Spitzer Space Telescope, "cometary knots" on the Helix Nebula show blue-green heads caused by excitation of their molecular material from shocks or ultraviolet radiation.

Spend three minutes getting lost in space. A video released by NASA this week shows the well-known Orion Nebula in a new way. The 3D visualization of the nebula allows the viewer to get a bird's ...