Last week, NASA announced it canceled its plans to send the Volatiles Investigating Polar Exploration Rover (VIPER) to the Moon’s southern polar region. The rover was meant to search for water and other resources called volatiles, such as hydrogen, ammonia and carbon dioxide, which easily evaporate in warm temperatures.Nicola Fox, associate administrator of NASA’s Science Mission Directorate, reiterated the agency’s commitment “to exploring the Moon for the benefit of humanity” through other missions.