Exploring Gravity with Optical Clocks



What is an optical clock?

Mission proposals


EU-FP7 project "SOC2"




Project Space Optical Clocks

In 2004, in response to an announcement of opportunity by ESA in the microgravity programme, a team of researchers from French, Italian and German research institutions proposed to operate lattice optical clocks on the ISS, as a natural succession of the mission “ACES” based on microwave clocks (which is planned for 2014). The lattice optical clocks’ frequencies are to be compared with those of ground clocks. The enhanced performance of 10-17 inaccuracy space optical clocks will lead to significantly improved science results in the of fundamental physics, time and frequency metrology and geodesy.

Overview of Mission Space Optical Clock 2012

Development description: Elips - 3 Space Optical Clocks