Earth’s earliest primates have taken a step up in the world, now that researchers have gotten a good look at their ankles.A new study has found that Purgatorius, a small mammal that lived on a diet of fruit and insects, was a tree dweller. Paleontologists...
Yale University astronomers have identified the first “changing look” quasar, a gleaming object in deep space that appears to have its own dimmer switch.
This artist's rending shows “before” and “after” images of a changing look quasar.
The discovery may...