A mysterious phenomenon at the center of our galaxy could be the result of a different type of dark matter. Dark matter, the ...

There's a new twist in the hunt for dark matter, the invisible substance that makes up 85 percent of all the mass in the ...

That's far faster than our slowpoke Sun, which orbits the center of our galaxy at about half a million miles per hour.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers using ...

XRISM has uncovered how galaxy clusters evolve—violent mergers create turbulence, preventing hot gas from cooling. This ...

(CNN) — Astronomers using the James Webb Space Telescope have spied dynamic flares of light near the supermassive black hole at the center of the Milky Way galaxy. The constant, rapid-fire ...