The main task of the search for extraterrestrial civilizations (SETI) is to search for radio signals from civilizations in other parts of the galaxy, but now the agency is starting to use another method, a method that uses laser light. To this end, they raised funds in Indiegogo, hoping to build a series of custom camera observatories dedicated to continuously scanning the entire sky, so that they may be able to search for transient laser pointer signals from intelligent life.
In the past 60 years, people have generally used radio signals to look for signs of alien civilization, but in fact they are not the only possible medium for finding alien life, like lasers, which can also be sent between stars information. It is understood that the laser can converge into a very tight beam and then tune to a single frequency to penetrate the dust and gas in space. At the same time, any lasers that eventually reach Earth may be very short-lived, because they are not directed at Earth, but just happen to be sent to Earth in a short time. The same is true of radio, but the difference between the two is that people scan the laser in space more than the radio.
The "laser SETI" plan proposed by the SETI organization is to build such observatories around the world to achieve the purpose of continuous observation of the entire sky. It will search for a red laser pointer as short as 1 millisecond or even shorter, even if there is duplication. According to SETI's own disclosure, they have tested this project for 2 years, and now it is time for them to move to a new stage. Obviously, this plan needs sufficient funds to start.
To this end, the agency launched a fundraising campaign of $ 100,000 in Indiegogo. It has been learned that the funds raised will be used for the assembly and initial operating costs of the purchase of two custom cameras and special optical equipment, and the additional funds will be used for the two complete observatories. One day in the future, SETI plans to deploy 14 such observatories around the world, and they will be able to carry out continuous observations regardless of the weather. At present, SETI has raised nearly 25% of the target funds, and there is still one month before the end of fundraising.