The company is solidifying an important partnership ahead of its commercial rollout.Space mobility specialist AST SpaceMobile (ASTS 52.62%) is formalizing ties with partner AT&T ahead of its commercial launch this summer. That news, along with AST's latest earnings report, has the stock going to the moon.Shares of AST SpaceMobile were up 34% as of 10:30 a.m. ET after opening as much as 48% higher.An important strategic partnerAT&T and AST SpaceMobile have been working together since 2018, but this new comme ...