Frontier 4 launches! This time, Urlum is the target! Each of these probes are a calculated risk.. but an important one. Before more advanced missions to the outer planets can be conducted, simple questions like “Will the solar panels get enough power?” and “Will the radio actually reach that far” need to be answered firmly, not just on graph paper! Frontier 4 will reach Urlum at the start of Year 7… in 3 years and 200 or so days!