Sky’s the Limit Observatory and Nature Center will hold a star party tonight, Saturday, May 4, starting at 8:45 p.m. Featured celestial objects tonight will be Ursa Major, also known as the Big Dipper, as well as two major galaxies. The star party is free and open to the public, but space is limited. Sky’s the Limit is located on Utah Trail, just north of the entrance to Joshua Tree National Park.