NASA keeps looking for technosignature of alien intelligence.

SETI keeps going and searches for techno signatures. The AI and new sensors are the tools that researchers want to use in that search that can continue longer than a lifetime. Or the search ends tomorrow. The problem is that nobody knows what they searching for.

Searching techno signatures like Dyson's spheres and artificial pollution is different than trying to make contact with aliens. Technosignatures are passive signals like pollution, city lights, or radiation from power sources.

The extreme version of the techno signatures is the alien probe, that nobody confirms to keep in warehouses. The probes would be the first crafts that enter our solar system when hypothetical aliens are coming.

If there is a manned alien spacecraft. That travels in the universe, there would be a fleet of drones or probes traveling ahead of manned units. Those probes' purpose is to search for interesting targets for that hypothetical spacecraft and its crew. The craft would be extremely large. And every maneuver that it makes requires lots of energy.

And that means the crew will not break it without a good reason. In one vision the Kardachev Scale 3 civilizations and civilizations above that scale can send interstellar spacecrafts with living crews. And if that is true, our home planet is too primitive for those creatures.

"NASA is expanding its search for extraterrestrial life to include technosignatures, signs of advanced civilizations, beyond just radio signals. This includes artificial chemicals in exoplanet atmospheres, infrared signatures of megastructures, and potential city lights on distant planets". (ScitechDaily.com/Searching for Signs of Intelligent Life in the Universe: Technosignatures)

There is a hypothesis that the "little grey men" are actually robots. The sender of those robots is unknown. (Images: ScitechDaily.com/Searching for Signs of Intelligent Life in the Universe: Technosignatures)

There is always a risk. The microbes pollute craft if the aliens try to send manned recon crafts to search humans or if aliens themselves try to land on Earth. Those microbes can be even deadlier than any ebola because our hypothetical aliens have no immune resistance against Earth bacteria.

So to avoid that risk those hypothetical aliens will not stop in our solar system. And even if they would start to orbit our planet or any similar planet they will operate on the ground by using remote- or AI-controlled robots. The thing makes sure, that any infectious material can split in the alien mothership.

When we think about interstellar traveling the time dilation can keep the crew alive longer than usual. If the craft uses time dilation to keep the crew operational for an extremely long time, that means that the senders of the craft died a long time ago before the crew reached the other solar system. The craft can have a saucer shape, and there is a particle accelerator at its edge. The purpose of that system is to accelerate electrons or protons to a speed, that is close to speed of light.

That particle accelerator will make the time dilation in the cabin, and the speed of the craft would be 20-50% of the speed of light. Centuries and millenniums are traveling outside its shell, and the journey would be one way. The senders will not see those crew members anymore.

https://scitechdaily.com/searching-for-signs-of-intelligent-life-in-the-universe-technosignatures/

MIT's tractor beam can make the new types of SASER systems possible

"This chip-based "tractor-beam," which uses an intensely focused beam of light to capture and manipulate biological particles without damaging the cells, could help biologists study the mechanisms of diseases."(Interesting Engineering, MIT’s Star Wars-inspired ‘tractor beam’ uses light to capture, manipulate cells) MIT's tractor beam can make the new types of SASER systems possible. The tractor beam just hovers the nanoparticle in air or medium, and then the laser or some other electromagnetic system transports oscillation into those particles. The ability to make cells and other particles hover in the system makes it possible to create particles whose energy level or resonance frequencies are accurately calculated things. That thing makes it possible to create things that transmit wave movement accurately and cleanly. This is one version of the use of a tractor beam. Modern tractor beams are like acoustic tweezers where sound waves lock the object in its cr

The new observations tell that the thunderstorms form gamma-rays. That could make gamma-ray lasers possible.

"An illustration of NASA’s research plane ER-2 flying over thunderstorms. Credit: University of Bergen / Mount Visual (CC BY 4.0), edited" (ScitechDaily, Surprising Discovery: NASA’s Retrofitted U2 Spy Plane Reveals Tropical Lightning Storms Are Radioactive) The new observations tell that the thunderstorms form gamma-rays. That could make gamma-ray lasers possible. The process has been observed by the NASA (Lockheed) ER-2 research plane, which is a modified U-2 spy plane. The gamma-ray formation in thunderstorms. Where lightning and electric fields release electrons that impact the air molecules and water droplets is an interesting thing. That thing opens the route to solving many mysteries. "The general physics behind how thunderstorms create high-energy flashes of gamma radiation is not a mystery. As thunderstorms develop, swirling drafts drive water droplets, hail, and ice into a mixture that creates an electric charge much like rubbing a balloon on your shirt. Pos

Chinese innovations and space lasers are interesting combinations.

Above: "Tiangong is China's operational space station located in low Earth orbit. (Image credit: Alejomiranda via Getty Images)" (Scpace.com, China's space station, Tiangong: A complete guide) Chinese are close to making nuclear-powered spacecraft. Almost every day, we can read about Chinese technical advances. So are, the Chinese more innovative than Western people? Or is there some kind of difference in culture and morale between Western and Chinese societies? The Chinese superiority in hypersonic technology is one of the things that tells something about the Chinese way of making things. In China, the mission means. And the only thing that means is mission. That means that things like budgets and safety orders are far different from Western standards. If some project serves the Chinese communist party and PLA (People's Liberation Army) that guarantees unlimited resources for those projects. Chinese authorities must not care about the public opinion. If we th

Interesting and futuristic innovations

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