Explorer II

Category:Achievements
Explorer II is an achievement in Starcom: Unknown Space 
Remarks: This achievement is a reference to its namesake, the Explorer II artificial satellite rocket payload, which launched in 1958 (a little over a month after Explorer I launched). Unlike its predecessor, Explorer II did not achieve orbital insertion and consequently did not become a satellite.
Obtained by (spoilers!)
 
1. Survey 50 planetary anomalies.