How Black Holes Sterilize Their Own Galaxies

How Black Holes Sterilize Their Own Galaxies

An Active Galactic Nucleus (AGN) is the term scientists use for the extremely bright, energetic center of some galaxies. It is essentially a supermassive black hole that is actively “eating.” When gas, dust, and even whole stars get too close to the black hole, they don’t just fall straight in. Instead, they spiral around it … Read more

How Close Is ‘The Great Rip’?

How Close Is 'The Great Rip'?

The universe we live in is a huge, expanding place, and scientists have been trying to figure out its ultimate fate for decades. Will it shrink back down? Will it just fade away slowly? For the longest time, the most likely end seemed to be the “Big Freeze,” where everything gets too far apart, cold, … Read more