Dear Colleagues, We kindly invite you to attend the science sessions "Frontiers of Astrometry" at the Commission 8 Business meeting on Monday August 21, 11:00-15:30, Room Club D in the Prague Congress Centre. These sessions are designed to reflect the forefront of space- and ground-based astrometry and its implications to a number of fields in astronomy and astrophysics. Most of the talks are invited and will be delivered by leading experts in each of the fields. Please visit the Commission 8 website: http://www.pha.jhu.edu/iau_comm8/comm8.html (see bottom of page) for a complete agenda and abstracts. Thank you! Among other speakers, Ed Fomalont is giving a talk on radioastronomy and astrometry. -Imants Platais (Commission 8 President)