By measuring the mass of a nearby dwarf galaxy called Triangulum II, researchers may have found the highest concentration of dark matter in any known galaxy.
During the past two decades, astronomers have discovered 300 “hot Jupiters,” but for the first time they’ve found one that has two close-in planetary companions.
Most black holes have little mass compared to their host galaxy, but a recently discovered black hole grew so quickly the host galaxy couldn’t keep pace.
At “just” 335 light years away, HD 100546 is one of our near cosmic neighbors, and its age of five to ten million years makes it relatively young in astronomical terms.
A beautiful full moon is set to rise this Sunday night, August 10. It will be spectacular and I encourage everyone to go outside and have a look. But the question is: will it be a supermoon?