Gateway: Lunar Link

Lunar Link is a self-standing telecommunication element with its own computers, radio equipment and antennas. It will provide communication services between the Gateway and lunar rovers, landers and satellites on and around the Moon.

Two antennas will operate simultaneously and independently to maintain communications with multiple targets, an important feature as more and more astronauts, robots and satellites are expected to operate around the Moon in the next decades. The system will allow for high data speeds that can support live video transmission between the Moon and the Gateway, even when the station will be at the furthest point in its orbit, 70 000 km away from the lunar surface; depending on the distance, the system can even support streaming in high resolution from the Moon.

After a critical design review in 2023, Thales Alenia Space in France started building and testing Lunar Link, after which it will be delivered to NASA and integrated with their Habitation and Logistics Outpost (HALO) module. HALO, together with Lunar Link and NASA’s power and propulsion module PPE, will be the first elements of the Gateway, launching towards the Moon in 2025.

Quick facts

Launch: 2025

Size: 2.5 m x 2.5 m

Antenna size: two dish antennas with a diameter of 125 cm, slightly larger than an average satellite dish antenna, plus two low gain antennas

Mass: 270 kg

Power consumption: up to 600W

Communication speed: from a few Kb/s up to 25 Mb/s depending on distance

Note: Lunar Link was previously known as ESPRIT HALO Lunar Communication System (HLCS).