Dozens of spacecraft have been launched towards Mars since the 1960s. Aimed at collecting data from the red plant in the hopes of unlocking Earth's past and shedding light on her future, probes have been launched by the US, Russia, Japan and Europe. An astounding run of bad luck including launch failures, communication gaffs and mysterious satellite disappearances led scientists to claim there was a Mars Curse. More than half of the missions launched to Mars have failed. Despite more recent success, researchers still joke about the Great Galactic Ghoul who subsists entirely on a diet of Mars probes!