On the other hand, Type Ia supernovae, which can be used as standard candles, are so rare that the likelihood of seeing one nearby is quite small, but we see many of them at large distances. Aside fro...On the other hand, Type Ia supernovae, which can be used as standard candles, are so rare that the likelihood of seeing one nearby is quite small, but we see many of them at large distances. Aside from the geometrical methods, the techniques used for objects farther away typically rest on calibrations from studies of similar objects that are relatively close and that have known distances from some other method.
