NGC 6240 lies 400 million light-years away in the constellation of Ophiuchus (The Serpent Holder). This galaxy has an elongated shape with branching wisps, loops and tails. This mess of gas, dust and ...

a) Right panel: Same as Figure 2. The giant ionized gas nebula (H-alpha nebula) of NGC 6240. This image was produced by subtracting the stellar continuum light from the H-alpha image and extracting ...

A: When two supermassive black holes finally merge, their million-year-long orbital dance culminates with an incredible burst of gravitational waves. If this takes place in the core of a galaxy, it ...

NGC 6240 is a system in which two supermassive black holes are a mere 3,000 light years apart. NGC 6240 is a galaxy in which two supermassive black holes are a mere 3,000 light years apart. These ...

Scientists have pinpointed the precise locations of a pair of supermassive black holes at the centers of two colliding galaxies 300 million light-years away. Subscribe to read this story ad-free Get ...

For the first time scientists have seen two supermassive black holes existing together at the core of the same galaxy. The black holes are orbiting each other and will collide and merge to create an ...

Jackson Ryan was CNET's science editor, and a multiple award-winning one at that. Earlier, he'd been a scientist, but he realized he wasn't very happy sitting at a lab bench all day. Science writing, ...