The study of solar flares will be extremely important for a lunar base. Not only are solar flares interesting from a scientific point of view, but, perhaps even more importantly, the energetic particles from solar flares will bombard the lunar base and at times make it extremely hazardous, even fatal, to astronauts working unprotected on the lunar surface. Of course, the two motivations are coupled; with better understanding of solar flare physics, predictions of solar flares and their consequences can be improved. To reduce telecommunications that would other wise be necessary between a lunar base and the Earth, there is value in monitoring the Sun from the lunar base and analyzing the data to make predictions on‐site.