Self-propelled vehicles on Mars have returned

Curiosity was active again after being shutdown last week and stopped contacting Earth.

Curiosity, NASA's Mars exploration vehicle, has been active again after more than a week of safe standby mode.

Like all other spacecraft, whether exploring the wilds on Red Planet, or pioneering deep space into space, Curiosity is installed to put itself into safe standby if suffered from some kind of serious systematic threat.

NASA engineers have spent many days studying what mystery has made Curiosity shut down. In the end, they "coaxed" this machine out of its standby mode on July 9.

Autonomous car exploding Mars Curiosity.(Source: NASA).

According to NASA, the reason for the autonomous vehicle to switch to safety mode has been identified as a software error , which occurs while the image data captured by the vehicle is being transferred to its memory.

When Curiosity turned on its safety mode last week, the car stopped most other activities, maintaining only its essential systems and following a pre-programmed sequence for resuming contact. Earth.

Sometimes, these shutdowns occur when cosmic radiation hits the vehicle's sensitive electronic devices.

However, in this case, Curiosity is trying to save the image to the computer when it encounters a software mismatch. To solve this, NASA scientists have devised a way to overcome the problem of software failure when the image is being saved.

Curiosity has proved it to be a "brave adventurer" when it has to turn itself on three times. This car also once broke a "arm" , stuck on a hill, punctured the wheel and one of its cameras lost the ability to focus .

However, from Earth, NASA scientists have successfully overcome the above problems of Curiosity.

The mission of this machine began in August 2012 and after the "victories" of Curiosity, NASA approved the extension of Curiosity for another two years, at least until 2018.