The rocky views glimpsed by the Nearer Nine and other Russian landers suggested a tortured volcanic history that was confirmed in the early 1990s by the American Magellan orbiter.

靠近地球的9号探测器和其他俄罗斯着陆器所看到的岩石景观，暗示了一段痛苦的火山历史，这一点在上世纪90年代初得到了美国麦哲伦轨道飞行器的证实。