A North Buffalo manufacturer of science education equipment is looking to the stars for growth, with the purchase of an astronomy-related manufacturing company. Science First bought Massachusetts based Learning Technologies in late June. Learning Technologies is known for designing and manufacturing the Starlab, a portable planetarium with a 5-or 7-foot diameter that ranges from $7,000 to $48,000 in price depending on if it is customised. The planetarium creates an artificial night sky, where students can learn about constellations or planets. The company also sells sun spotter telescopes, hands-on astronomy and physics kits and classroom materials.