We may be closing in on the discovery of alien life. Are we prepared?

October 07, 2019

Unlike the robotic explorers now prowling Mars’ dusty landscapes, these new craft -- launched by both NASA and a European-Russian collaboration -- will be engaged in a type of reconnaissance that hasn’t been tried since NASA’s Viking landers set down there in the mid-1970s. The new craft will go beyond merely scouting for locations that were once suitable for life. They’ll be on the hunt for life itself. Dead or alive.