The August 2017 solar eclipse is the chance of a lifetime for astronomer Shadia Habbal—years of planning come down to one moment of totality. Will everything go off as planned?

Years earlier, a long, expensive trip to Indonesia to study an eclipse failed when the skies remained too cloudy to see it. Shadia is determined to have the 2017 eclipse be a success. Will the computers fail?

Dorothy Patent follows the scientists trying to put a stop to a gruesome disease before it’s too late. Tasmanian devils are dying at an alarming rate from a type of tumor that appears to be contagious.

Where did this disease, named Devil Facial Tumor Disease, come from? What caused it—a virus, bacteria, or something else? How did it pass from one devil to another? What could be done to fight it?