- Astronauts could one day hop a train on the moon.
- DARPA, the famed US research agency, has asked a firm to come up with a lunar railroad concept.
- NASA wants astronauts to live on the moon, which means developing lunar power, transport, and comms.
Astronauts may one day be able to hop on a train to travel the moon's surface.
DARPA, the US Defense Department's secretive research agency, has been tasked with figuring out how to support astronauts who could soon be living on the moon for extended periods.