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scientists have created a system for transmitting data between satellites

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scientists have created a system for transmitting data between satellites

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Laser revolution in space communications: scientists have created a system for transmitting data between satellites

Lasers are the new language of space communications.

Scientists from the US and Germany have figured out how to transmit data between satellites using lasers. This will create an Internet backbone in space that will be faster and more reliable than it is now.

Satellites are spacecraft that orbit the Earth or other planets. They are needed for different purposes: for example, for studying space, for weather forecasting, for navigation or for communication. The satellites communicate with each other and with the Earth by radio. But radio communication has its drawbacks: it can be disturbed by other signals, it requires large antennas and a lot of power, and it occupies a limited number of frequencies.

Lasers are devices that emit light of a single color and direction. They can transmit data faster and more efficiently than radio. In addition, lasers are harder to intercept or fake. But laser communication between satellites is not an easy task: you need to accurately target laser beams at a distance of thousands of kilometers, taking into account the movement of satellites and air.

Scientists from the University of California at Los Angeles (UCLA) and the Max Planck Institute for Applied Physics in Germany (MPQ) came up with a solution this task. They made a system that consists of two lasers on each satellite, one for transmitting data and the other for aiming the beams.

The first laser sends out a powerful pulse of light on which information is recorded. The second laser sends out a weak signal of light, which is used to determine the position and direction of the satellites. The satellites exchange these signals and adjust their lasers so that they are pointed at each other.

The system also uses special algorithms to correct laser beam distortion due to air. The scientists tested their system on a computer and showed that it can provide high beam targeting accuracy and high data transfer rates – up to 10 gigabits per second.

The scientists say their system could be used to create a global Internet backbone via satellites that would connect different regions of the Earth and communicate with spacecraft in deep space. Such a highway can improve the efficiency and security of communications in various fields such as science, education, medicine, military affairs and entertainment.

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