In 2016, Mabari's site-specific sculpture Astral Challenger was put on permanent display by the City of Lancaster, California, on the roundabout at the intersection of Challenger Way and Avenue L. Conceived as both a tribute to the city's achievements in the aerospace industry and to honor the astronauts lost in the 1986 space shuttle Challenger disaster, its minimalist form evokes the silhouette of a rocket while maintaining an illusion of near weightlessness. At night, the sculpture is illuminated by LED lights encased within in the 19-foot diameter concrete pad upon which it sits.

The 20-foot-tall stainless-steel-and-acrylic structure was the first piece to be commissioned by the city's Arts and Public Places program, with 75% of the funding provided through a California Department of Transportation (Caltrans) grant.