On Monday 26th November 2018, Surrey Satellite Technology Ltd (SSTL) announced that it is designing a low cost 35kg lunar communications satellite mission called DoT-4, targeted for a 2021 launch. Linking up with a rover on the surface of the Moon, DoT-4 will provide the communications relay back to Earth using the Goonhilly Deep Space Network.
DoT-4 is one of a series of Demonstration of Technology (DoT) missions that SSTL is planning to launch over the coming years.
A larger communications satellite is set to follow in the 2023 timeframe. The aim of this mission is to launch a full constellation of lunar communications satellites offering full service capability to enable new and regular opportunities for science, exploration and economic development of the space environment beyond Earth’s orbit.