NASA suspends Mars mission over faulty instrument
It is feared the mission could now face a two-year delay.
The InSight spacecraft was scheduled to take off between 4-30 March and land on the Red Planet six months later to examine Mars` geology in depth.
Nasa said it had decided to call off the launch because the agency was unable to fix a leak affecting the seismometer, which required a vacuum seal to cope with harsh conditions on Mars.
The instrument is designed to measure ground movements.
"A decision on a path forward will be made in the coming months, but one thing is clear: Nasa remains fully committed to the scientific discovery and exploration of Mars," Nasa`s John Grunsfeld was quoted as saying by the AFP news agency.
The next time the earth and Mars are favourably aligned for a launch will be in 2018.
The mission is also intended to monitor the temperature on Mars, as well as the variations in its orbit.