A group of astronomy students got some hands-on time with a telescope during a four-day field trip to Kitt Peak National Observatory, near Tucson.

Araceli Garcia del Soto, an expert on international humanitarian work and programs aimed at populations affected by violence, will teach a course and run three workshops during a semester-long residency at Haverford.

The geochemist will continue her work on the Deepwater Horizon oil spill in a collaborative project that will examine what happened chemically to the oil and to the dispersants used in the aftermath of the disaster.