Josiah Wolf is an unlikely astronomer. A musician who has spent most of his adult life touring, Wolf began to develop an obsession with learning about the solar system.
“I just had the urge to see the scale of the sun and Earth myself,” Wolf explained. A few years ago, he decided to fashion a scale diorama of the solar system from old fence posts and blacklight paint in his backyard. He taught himself interesting facts about space and began offering nighttime tours to friends and family.
Wolf’s friend, Ben Sloan, a People’s Liberty grantee
, suggested he apply for a $10,000 grant from the organization to make his backyard model into a permanent installation. With the help of his wife Liz and their project partner, Matt Kotlarcyzk, Wolf applied for a grant and his backyard project became SPACEWALK
After receiving funding, the trio began the 10-month design process to make SPACEWALK a reality. The design went through many stages but ultimately had to conform to certain restrictions. Wolf knew that he wanted the models to light up at night, which meant they needed to utilize solar panels so that the models could be freestanding and sustainable.
Solar panels must be placed at least 12 feet in the air in order to gather sufficient power, so the design had to incorporate poles to which the panels could be mounted.
After months of trial and error, Wolf settled on a shadowbox design for the models. The small plastic planets sit inside of a case with a hidden, recessed blacklight. The planets were painted by artist Steve Casino
, who is known for his miniature paintings on peanuts. The models are a 3.5-billion-to-1 in scale.
Once the design process was completed, the team needed to determine where SPACEWALK would be installed.
“It was hard to find the perfect location,” Wolf said. Because the project is meant to be viewed at night, it was important to find a location with low lighting. It also needed to be a public place with foot traffic to ensure SPACEWALK would be enjoyed by as many passing science-lovers as possible.
After considering a variety of options, Wolf selected Salway Park, which runs along Mill Creek across from Spring Grove Cemetery. The installation spans three-quarters of a mile along the path.
The project has been up for two months and will continue to be freely available for viewing for the indefinite future. Wolf also offers private tours for those interested. To arrange a tour, e-mail
SPACEWALK; to stay up-to-date on all things SPACEWALK, visit its website
SPACEWALK is currently accepting donations
to support the ongoing maintenance of the installation.
Twice per year, eight grantees are chosen per grant cycle to prototype solutions to civic challenges. Project grantees are supported with $10,000, a launch event and access to People’s Liberty’s workplace and mentorship. Stay tuned to Soapbox for profiles of this year's 15 other grantees.