It will take 18, 000 years for today's spacecraft to reach our closest star, Alpha Centauri. Calculations have shown that to complete this journey within an acceptable time frame, in 20 years, you need not a huge spaceship, but a tiny nanochip. It is much easier to accelerate it to one-fifth the speed of light, convenient for intergalactic travel. But there is a problem - a fragile device will not withstand temperature extremes and harsh cosmic radiation. Therefore, NASA decided to teach him "regeneration".
The installation of armor, hard protection on the ship-chip, increases its dimensions and impairs its driving performance. Plotting a route outside hazardous areas drastically reduces the available flight area. In addition, during long flights, the problem of wear and tear of components arises sharply, and such a spaceship, for obvious reasons, cannot carry a stock of spare parts and a repair crew with it.
The solution may be transistor technology from the Korean Institute KAIST, in which nanowires are surrounded by a double set of "gates". The current flowing through them for a short time, about 10 nanoseconds, heats the system up to 900 ºC. This heat helps compensate for performance degradation due to damage from cosmic radiation.
NASA says it has successfully tested three key components of the ship-chip: a microcontroller, DRAM memory, and a flash drive, and is convinced that the technology does indeed deal with the defects caused by hard radiation. The memory resource, for example, can thus be extended more than a thousand times. Even if a fantastic micro-ship is not created, rugged electronic components will still be useful for working in the harsh conditions of space.