EVENTS For information on JPL tours and the speakers bureau, visit our PUBLIC SERVICES site. The Solar System Ambassador Program sponsors events in communities around the country. Find out how to become a volunteer Solar System Ambassador.		Topic - Astronomy - The Ultraviolet Universe The Galaxy Evolution Explorer A New Window on the Evolving Universe Presented by Dr. Christopher Martin GALEX Principal Investigator The von Karman Lecture series webcast archive is temporarily unavailable. Thank you for your patience. Thursday, April 21 The von Kármán Auditorium at JPL 4800 Oak Grove Drive Pasadena, CA For directions, click here. Friday, April 22 The Vosloh Forum at Pasadena City College 1570 East Colorado Blvd. Pasadena, CA For directions, click here. Both lectures begin at 7 p.m. PST and run for approximately an hour. Admission is free. Seating is limited. For more information, call (818) 354-0112. The Galaxy Evolution Explorer (GALEX), an orbiting telescope, is a NASA Explorer mission surveying the sky in the ultraviolet. GALEX is tracing episodes of galaxy building and star formation, the ultimate "construction projects" that built the billions of galaxies we see today. We are finding that star formation is a complex and fascinating process that occurs in amazingly diverse environments. The deepest GALEX images are tracing the evolution of galaxy building into the distant past, when most of the galactic construction took place, including that in our own Milky Way. GALEX maps of the ultraviolet sky, an unexplored piece of the electromagnetic spectrum, are producing many other surprises and discoveries about stars, the Milky Way, and the universe. To learn more about the Galex Mission click here.