In the New York Times it was announced that a certain cosmic ray experiment is delayed. This is the AMS experiment. This delay might require the space shuttle to be used beyond its official phase out date. The delay is caused because they are changing some powerful superconducting magnet for a much weaker permanent magnet, thereby reducing (quite substantially it seems) the specs of the equipment.
Someone told me that they’d much rather have 3 years of very good data than a much longer run of poor data, so it seems that some big failure happened with the equipment.