NASA receives laser signal from 460 million km from Earth

NASA receives laser signal from 460 million km from Earth

THE NASA set a new record by successfully sending and receiving a signal laser at an impressive distance of around 460 million kilometers from Earth. This achievement has the potential to revolutionize deep space communications, enabling greater efficiency in exchanging information on future missions.

The DSOC Project: Interplanetary Broadband

The experiment, carried out by the Demonstration of Optical Communications in Deep Space (DSOC) at NASA, seeks to test the feasibility of using lasers for communications in distant regions of space. This technology has the potential to transmit data up to 100 times faster than currently used radio frequencies, which could enable the sending of complex scientific data and high-definition images.

The Importance of Lasers in Space Communications

Unlike radio frequencies, lasers they require much greater precision to operate, but they make up for this with a significantly faster data transfer rate. With the use of infrared signals In the DSOC project, NASA was able to send data with superior quality and speed, bringing a new level of efficiency to space communications.

Record Break with Psyche

In July 2024, NASA broke a record by sending a signal from laser from the Earth for the spacecraft Psychewhich was about 460 million kilometers away. THE Psyche is a space mission that aims to study a metal asteroid located in the asteroid belt between Mars and Jupiter. This milestone was a significant step towards the future of space communications.

Accuracy and Challenges

Second Meera Srinivasanoperations manager at Jet Propulsion Laboratory (JPL) of NASA, the main challenge was to guarantee the accuracy of the laser when hitting such distant targets. “We didn’t know how much degradation we would see at greater distances,” she commented, highlighting the success in tracking and directing signals precisely. The success of this technology proves that the use of optical communications in deep space can be reliable and transformative.

How the Experiment Works

The experiment uses a laser transceiver flight station, installed on the Psyche spacecraft, and two ground stations. One of them is the famous Hale Telescope node Palomar Observatoryin California, which receives signals sent from deep space. The other station, located on the JPL premises, is responsible for transmitting signals laser to the Psyche transceiver.

Impact for Future Space Missions

With the ability to transmit data at speeds up to 100 times faster than radio frequencies, this new technology could be instrumental in supporting future space missions, such as the exploration of Mars. THE NASA believes that this innovation will allow the sending of high definition videos and images, as well as complex scientific data, more quickly and efficiently.

Test Data: Videos and Spatial Art

During the experiment, the NASA took the opportunity to broadcast a video ultra HD directly from the spacecraft Psyche for the Earthmarking the first transmission of its kind made from deep space. The video contained scenes from Earth and space, as well as illustrations and images captured by the mission. This test was important to validate the technology’s ability to handle large volumes of data.

Upload and Download Stations

Ground stations played a crucial role in the experiment. THE Optical Communications Telescope Laboratory from JPL was able to send 7 kilowatts of power through laserwhile the telescope at Palomar Observatory received data sent by Psyche. These stations are essential to ensuring that high-speed communication works effectively over long distances.

Comparison with Radio Frequencies

Even when the Psyche was 53 million kilometers from Earththe system was able to transmit data at a speed of 267 megabits per second — similar to download speeds broadband internet. This demonstrates the potential of laser communications to replace current radio frequency technologies in space missions.

Long Distance Transmission Record

In June 2024, when the Psyche was 390 million kilometers from Earththe data transmission rate was 6.25 megabits per secondwith peaks of 8.3 megabits per second. Although this rate is less than the maximum achieved over shorter distances, it is still much faster than the capabilities of currently used radio systems.

The Future of Laser Communications

The success of this technology laser communication demonstrates that it can be used in future manned missions, including those aimed at sending astronauts to Mars. As the NASA advances with technology laserwe can expect an increase in the efficiency of communications in robotic and manned missions, supporting the exploration of even more distant locations in the solar system.

Summary for those in a hurry:

  • THE NASA sent and received a signal laser 460 million kilometers from Earthsetting a new record.
  • The technology of optical communications allows data to be sent 100 times faster than current radio frequencies.
  • The experiment was carried out with the spacecraft Psychewhich is traveling toward an asteroid in the belt between Mars and Jupiter.
  • Laser communications can transmit high-definition video and images with greater efficiency than current technologies.
  • The optical communication system of NASA uses infrared signals to transfer large volumes of data over long distances.
  • This technology could be crucial for future missions to Mars and beyond, enabling faster and more reliable communication.

Source: Atrevida

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