Selex Galileo of Finmeccanica has signed a contract worth EUR 65,49 million with Thales Alenia Space, to
supply the Sea and Land Surface Temperature Radiometer (SLSTR), a crucial element of the Sentinel
3 payload. The Sentinel 3 is one of the "Sentinels" foreseen within the European program GMES
(Global Monitoring for Environment and Security). 

On May 7th  at 01:37 the first hydrogen atomic clock (Passive Hydrogen Maser PHM) ever embarked on a space mission reached operating temperature and started to generate the reference signal on board the GioveB Galileo satellite, launched from Baikonur, Kazakhstan on April 27th .