Dario Izzo writes: The Mars Express spacecraft from ESA has been orbiting the Red Planet for 12 years. While its controllers know the spacecraft inside out, additional insights are hidden within the mounds of telemetry the mission generates – inspiring the first of ESA’s new data mining competitions: the Mars Express Power Challenge. The goal is to use machine learning techniques to predict Mars Express’s thermal power consumption during the martian year ahead, based on its past telemetry. ESA is targeting the international data mining and machine learning community – including students, research groups or companies”. The website Kelvins is hosting the competition.