Tours & Events


The LIGO Hanford Observatory (LHO) hosts free tours for the public and school groups throughout the year. Click on the links below to learn more.

Special Events

LHO periodically hosts star parties, open houses, and other special events for the public. for more information on upcoming special events at the observatory, click on a link below:

August 21, 2017 Post Solar Eclipse Celebration!

Note that because of the Pots-Eclipse evening event on August 21st, LIGO Hanford Observatory will be closed to drop-in visitors during the day.