Reasoning
Three credible sources provide conflicting values. For each source domain, we treat it as a single opinion and use the highest confidence value from that domain. Oscar Liang: 0.15 km (0.90). Space.com: 0.6 km (1.00). TechRadar: 0.1 km (0.80). We then compute a weighted average using confidences as weights: (0.6*1.00 + 0.15*0.90 + 0.1*0.80) / (1.00 + 0.90 + 0.80) = 0.815 / 2.70 ≈ 0.303 km.