Engineers Design 500-Watt Laser-Powered Rover to Explore the Moon’s Darkest Craters
The Daily Galaxy • • science
Key Points:
- The European Space Agency (ESA) is exploring a laser-based system, called PHILIP, to power lunar rovers in the Moon’s permanently shadowed regions, which are believed to contain valuable water ice deposits.
- Instead of traditional nuclear power sources, the PHILIP system uses a 500-watt infrared laser from a nearby lander to transmit energy up to 15 km to a rover, enabling it to operate in total darkness without generating heat that could affect the ice.
- The rover converts the laser beam into electricity via modified solar panels and uses a retro-reflector to send communication signals back to the lander, allowing for two-way data exchange.
- Field tests simulating lunar night conditions have validated the concept, and ESA plans to move towards prototyping and further testing to enable exploration of these previously inaccessible lunar areas.
