When astronomers talk about blue stars, they're generally talking about hot, young stars known as blue supergiants. But the blue stars you can see in the image up top are stars just like their Sun... except they've mysteriously turned blue.

This awesome video, courtesy of the European Space Agency, takes us through the optical, ultraviolet, microwave, and infrared wavelengths to reveal our neighboring galaxy Andromeda in quite literally every possible light.

This is one of our closest galactic neighbors, the Andromeda Galaxy, seen in three different kinds of light: visible, infrared, and x-ray. These three very different views are then combined together to create one amazingly beautiful composite image.

Astrophotographer Tyler Allred took this amazing new image of the Andromeda Galaxy, which just appeared in the Salt Lake Tribune. Today's new space porn also includes Jupiter's shrinking spot, digitally-restored moon pics, and an exoplanet.