Black holes spew out powerful jets that span millions of light-years. We're trying to understand their whole life cycle
There is a supermassive black hole at the center of nearly every big galaxy—including ours, the Milky Way (it's called ...
BGR3y
The largest known galaxy was just discovered, and you won’t believe how massive it is
The new discovery is located around 3 billion light-years away. The galaxy, which is named Alcyoneus, is a giant radio galaxy. The galaxy is roughly 16.3 million light-years long. For reference ...