Milky Way

Excess gamma-ray light at the galactic center may indicate invisible dark matter particles
 

The image you see here is a computer-generated model of the black hole at the center of the Milky Way, which we call Sagittarius A*. More precisely, it is a model of the "shadow" that Sagittarius A*, with its mass of four million suns, should cast.

Do yourself a favor. Don't read this article just yet--first, take a moment to zoom around this incredible panorama of our galaxy and soak in the splendor: http://www.spitzer.caltech.edu/glimpse360/aladin.

Small galaxies orbiting the Milky Way may have arrived via dark matter superhighways stretching across the universe

“Some people think our research is crap.” You might think that a phrase like that from the mouth of a scientist would be followed shortly by a tirade on other scientists who’ve done them wrong, or maybe people who don’t think their grant deserves funding.

By adapting a global network of telescopes, astronomers will soon get their first look ever at the dark silhouette of a black hole

Dark matter is not just a puzzle. It is a solution