NASA cancels launch of next Mars probe due to instrument leak

NASA has cancelled launch of next Mars probe due to issues with the research instrument
A U.S. science satellite slated to launch to Mars in March has been grounded due to leak in a key research instrument, NASA said on Tuesday, creating uncertainty about the future of a widely anticipated effort to study the interior of the planet.
The spacecraft, known as InSight, was designed to help scientists learn more about the formation of rocky planets, including Earth.
The cancellation raises question