Mars 2020 mission was threatened
On our site we have repeatedly written about the development of the Mars 2020, which will have a couple of years to go to the Red Planet. the project is being proactive testing phase now, but not so long ago, during a test mission was under threat, and may be delayed for some time due to a malfunction thermofilter rover screen.
As the edition Engadget, thermofilter must protect the entire system from damage during landing and re-entry. At this point thermofilter will have to withstand temperatures up to 2000 degrees Celsius, and the very large pressure drops.
During the test engineers the shield is subjected to heat and pressure for approximately 20% longer than planned, in order to avoid emergency situations. And after the recent experiments revealed that the screen is cracked near the outer edge. This "hole" could destroy a large part of the equipment or even to bring the rover down. So in this situation, there is a plus: it is better to lose a shield today, and improve the technology than to lose all of the rover and fail the mission. Now the engineers will have to order from Lockheed Martin (namely, they are engaged in the production of certain components for the upcoming mission) new screen and find a way out of this situation in order to avoid this problem. Recall that the rover will travel to Mars in a rocket-carrier Atlas-5, and the mission will be studied geological structure, composition of the atmosphere, soil and natural resources of the Red Planet. But the most interesting stage will attempt to get oxygen to the harsh conditions of the Martian atmosphere.