Also, one of the article's key quotes makes the sunk cost fallacy: “They’re running out of time,” says Mark Sykes, director of the Planetary Science Institute

Also, one of the article's key quotes makes the sunk cost fallacy: “They’re running out of time,” says Mark Sykes, director of the Planetary Science Institute in Tucson, Arizona, who is not involved in the mission. “We’re not just talking about science being lost — we’re talking about getting return on our investment.”