Visitors touring Hanford LIGO snap a photo in front of one of the observatory’s vacuum tubes that stretches across the shrub steppe landscape.
Visitors touring Hanford LIGO snap a photo in front of one of the observatory’s vacuum tubes that stretches across the shrub steppe landscape. Tri-City Herald file
Visitors touring Hanford LIGO snap a photo in front of one of the observatory’s vacuum tubes that stretches across the shrub steppe landscape. Tri-City Herald file

LIGO Hanford changes up popular tours

February 07, 2017 6:34 PM