A mass emergence of crane flies in Tucson has many people wondering what the creatures are and why they seemed to show up all at once. An insect expert has answers.
An electron could travel the circumference of the Earth in 18 seconds flat. Mohammed Hassan, an assistant professor of physics and optical sciences, wants to be the first to image one.
Women who experience more stressful life events in the year before childbirth are more likely to use marijuana before and during pregnancy, a new study shows.