over by manual control if Kurs malfunctions recurred. This Progress module carried with it a Raduga return capsule. Cosmonautics Day Observed on April 12 On the 34th anniversary of Yuri Gagarin's flight in a Vostock capsule, the Mir crew had a light schedule for Cosmonautics Day, a Russian national holiday. Activities included press conferences through the Russian and U.S. mission control centers. Progress Unloaded On April 13, the crew began unloading the Progress cargo of food, water, fuel, repair materials for life support systems and equipment for medical and environmental research. Among the biological experiments were some Japanese quail eggs. These, the crew put into an incubator on April 14. Progress M-27 also brought a new international experiment in the form of GFZ-1, a spherical satellite with a mass of 20 kg and a diameter of 21 cm. The German satellite was built by the German firm Kayser-Threde. Geoforschungszentrum Potsdam would coordinate the satellite's transmission of geodetic measurements by means of laser reflection to about 25 observatories around the globe. GFZ-1 was successfully launched by the Mir crew from the base block airlock on April 19. Two days before, the crew had launched a container with garbage as a practice run for the operation. Interior Station Work Late in April, the crew learned that extravehicular activities (EVAs) for solar array work, scheduled to start on April 28, had been postponed due to a delay in launch of the Spektr module. One reason for the delay was that equipment to interface with Mir's manual control system was added to Spektr in case the Kurs system failed again. The crew continued routine experiment work, defrosted the ESA freezer, replaced a humidity control fan with one from Progress M-27, installed a battery unit in the Kristall module and began removing an unused shower in the Kvant module to make room for a new set of gyrodynes to support the upcoming Atlantis docking. They dismantled the shower and cut it into small pieces for stowage on the Progress module, then installed the gyrodynes. May 1995 - Four EVAs Injury Jeopardizes EVA Plans ITAR-TASS reported on May 5 that Strekalov had scratched his hand earlier during cleaning tasks. The scratch became inflamed and caused some concern about Strekalov's ability to do the EVA work. Medical specialists on the ground viewed downlink video of the hand and prescribed a medication to be administered by Thagard. The