Ask most astronomers, and they'll tell you that dark matter and dark energy make up more than 95 percent of the universe and that they are the explanations for many of the large-scale phenomena we ...

Discovery: An international team has discovered a dark object in the distant universe that has one million times the mass of ...

If you've suddenly awakened at night to find your companion kitty playfully zooming around the house — or staring at you from the foot of your bed — you might wonder how much they can actually see in ...

For decades, astronomers have believed that dark matter and dark energy make up most of the universe. However, a new study ...