The monthly LIGO public tour starts at 1:30 p.m. July 9 at the LIGO Hanford Observatory, 127124 N. Route 10 in Richland.
Wear comfortable shoes because the walking tour covers a lot of ground at the observatory and includes the control room. All ages welcome. The site is wheelchair accessible. For more information, go to www.ligo-wa.caltech.edu or call 372-8181.