The National Aeronautics and Space Administration (Nasa) has been struggling to fix a computer failure that has been preventing the agency from sending commands to the International Space Station (ISS).

The computer, which is located at the agency’s Johnson Space Center in Houston, Texas, failed on Wednesday morning. As a result, Nasa has been unable to send commands to the ISS, or receive information from the station.

ISS astronauts have been operating the station manually since the computer failure, but they are running out of time to complete their tasks before the end of their mission.

Nasa has been working …