Nanotubes are not standing forever. But they are ultimate tools. 

The nanotubes are vulnerable to pulling. If the atoms that are creating nanotube would be separated. That thing will pull them away. The difference between carbon-based nanotubes and metal is that carbon nanotubes are not elastic. They can cut before previous damages. And that thing is one of the weaknesses of nanotubes. 

Every material has limits. And even nanotubes cannot stand forever. The thing is that stress and other things are causing the situation that sometimes even diamonds will break. The fact is nanotubes are strong and very useful materials for many purposes. They can use in modern photon-based computers for protecting laser rays for eavesdroppers. And in quantum computers, the qubit can travel through nanotubes that protect them against outcoming effects. 

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Image 1: "Rice University researchers determined several ways a nanotube experiences plastic failure, either through dislocation movement under 6% strain (here) or through shear band formation under 14% strain. Both mechanisms, seen in kinetic Monte Carlo simulations, only activate under extreme conditions, so neither appears to be a significant factor in the fatigue of the nanotubes. Credit: Nitant Gupta/Yakobson Research Group" (https://scitechdaily.com/nanotube-fibers-stand-strong-but-for-how-long-under-stresses-and-strains/)

Image 2: "Rice University researchers determined several ways a nanotube experiences plastic failure, either through dislocation movement under 6% strain or in this animation through shear band formation under 14% strain. Both mechanisms, seen in kinetic Monte Carlo simulations, only activate under extreme conditions, so neither appears to be a significant factor in the fatigue of the nanotubes. Credit: Nitant Gupta/Yakobson Research Group" (https://scitechdaily.com/nanotube-fibers-stand-strong-but-for-how-long-under-stresses-and-strains/)

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The nanotubes can also protect things like scanning tunneling microscopes and a new type of laser microscopes. In those systems, the ion will hover in the nanotube. Or laser rays will just send through the nanotube and that thing protects the measurement system against non-controlled effects. When an extremely thin system scans the surface of the layer even one air molecule can cause errors for measurement. 

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If the scanning tunneling microscope uses superpositioned and entangled photons for scanning surfaces. That system sees even individual electrons. 

The accuracy of the scanning tunneling microscopes is so high. That they are seeing individual atoms. But the quantum entanglement would make those scanning tunneling microscopes more powerful than ever before. 

If the system uses superpositioned and entangled photons or electrons for scanning surfaces. That system sees even the individual electrons. 

But the superpositioned and entangled photons require extremely high controlled conditions. So the superposition can conduct through the nanotube that protects it from the outcoming effects. 

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Image 3: "An electron wavepacket is directed at a potential barrier. Note the dim spot on the right that represents tunneling electrons". (Wikipedia, Quantum tunneling)

The nanotubes can give more power to ion engines. 

Also, maybe someday nanotubes can use for creating rocket engines. That will use quantum tunneling for making faster exhaust gas. In those futuristic ion engines, the quantum tunneling makes it possible that the ions or electrons and protons can travel faster than in so-called regular rocket engines. 

If the ion engines ion flow will be covered by microwaves. That thing protects them to side coming electromagnetic radiation. The side coming radiation along with quantum fields are the thing that slows the particles. 

The quantum tunneling makes it possible that the speed of the particle is rising to a level that is higher than everywhere else. And nanotubes can use to create conditions. Where the particle's speed is so close to the speed of light. As possible.

Researchers can theoretically make the conditions where the speed of ions will rise higher than in normal space by creating the radio- or microwaves that travel to the direction where the exhausting particles are traveling. That electromagnetic field removes the quantum fields that are crossing the flight path of the outcoming particles.

https://scitechdaily.com/nanotube-fibers-stand-strong-but-for-how-long-under-stresses-and-strains/

https://en.wikipedia.org/wiki/Monte_Carlo_method

https://en.wikipedia.org/wiki/Quantum_tunnelling

Images 1 and 2:https://scitechdaily.com/nanotube-fibers-stand-strong-but-for-how-long-under-stresses-and-strains/

Image3: https://en.wikipedia.org/wiki/Quantum_tunnelling

https://thoughtsaboutsuperpositions.blogspot.com/

The image of Eagle Nebula by Hubble telescope

The image of Eagle Nebula by Hubble telescope

When the human mind is looking for inspiration, it needs something, what to use for creating things. I don't know what the images, what Hubble is taken from the space portraits, or what is in those images. But the thing is that in my mind they are looking like something like spacemen or something like that. And maybe that thing is purely coincidence. And NASA says this image is born of the star by taken in the infrared area.

The Eagle Nebula in the image, what is taken by Hubble space telescope seems like a group of some kind of animals, what is standing in on the stump. And in some other images, people are seeing the astronauts. The thing is that the images of astronauts can be formed in the cosmic nebulas by accidentally, but there is a small possibility, that they would be real forms, what is remaining forever because space is a very stable structure.

One of the explanations is that the GRB (Gamma Ray Burst) would go through the body of the astronaut, and then the shape of that thing would be immortalized forever to the interplanetary nebula. In this case, the images, that Hubble has been taken are real images of ancient astronauts, what is remaining in the skies forever. Or at least million of years.

Those images have been given inspiration for the next generation space suits, which are making superman looking ordinary.

But there is another very uncomfortable explanation about the strange forms of the nebulas. And that is connected also to the spacesuits. In some theories, the spacesuits of tomorrow would have the electromagnetic shield against the radiation and ionized molecules. That protective shield would act as it would be the microwave bubble, which will launch in extreme situations.

In this case, the spacesuit would be covered by using magnetrons, which is created by using nanotechnology. In the situation, that astronauts would be in trouble by the micro meteors, this person might launch the microwave shield, and then the microwaves would turn the incoming meteors to atoms. In the wildest dreams in the bottom of the shoes of space suit might be the photon motors, which allows the fantasy spaceman to fly even to another solar system if there is enough energy.

In this scenario, the spacesuit would be frozen the astronaut to the near the zero degrees of Kelvin, which makes this kind of journey, what takes thousands of years theoretically possible, The extremely low temperature denies the oscillation of molecules, and that could make DNA allow to abide very long time. But is the journey, what takes thousands of years still too long, and would the DNA destroyed in that time? We know that nobody knows the answer.

The thing is that energy to the spacesuits can be delivered by using maser ray, which can make some of the most extraordinary things possible. But if the spacesuit would be covered by a nano-sized particle accelerator, that allows stopping the time inside the suit. The thing is that the nanotubes would be covered by using the magnetic acceleration tracks, which act similar ways with the particle accelerators of CERN.

Those magnetic tracks, what is benefiting nanotechnology are far smaller than tracks, which are used in CERN. And if the energy problems of the suit would be solved the nanotubes would accelerate the particles in the very high energy levels. When the speed of the particles is closing the speed of the light, the time inside the suit is slowing. So the energy of those hypothetical suits would deliver by using electron rays.

Image by NASA