<span style="color: #222222;">NASA's robotic Mars InSight lander has recorded a likely mars quake for the first time ever.&nbsp;</span><br />” <br />” <span style="color: #222222;">The US space agency said the faint seismic signal, detected by the lander's Seismic instrument, was recorded on April 6 this year.&nbsp;</span><br />” <br />” <span style="color: #222222;">NASA said this is the first recorded trembling that appears to have come from inside the planet, as opposed to being caused by forces above the surface, such as wind.&nbsp;</span><br />” <br />” <span style="color: #222222;">Scientists still are examining the data to determine the exact cause of the signal.</span><br />” &nbsp;