American space agency NASA has claimed that Earth has received a mysterious signal from deep space. NASA’s new spacecraft “Psyche” absorbed the signals. It has been learnt that the signal has been intercepted from approximately 140 million miles away.
In October 2023, NASA launched a space mission, sending a spacecraft towards an asteroid, named 'Psyche 16', believed to be primarily composed of metal, a rarity in our solar system. The asteroid is said to be located in the asteroid belt between the planets Mars and Jupiter.
Named Psyche, after the asteroid, it is destined for, this robotic explorer had another mission – to test laser communications.
Psyche is equipped with the Deep Space Optical Communications (DSOC) system, which aims to make laser communication possible across vast distances in space, promising much faster connections than current methods.
Despite Psyche primarily using radio frequency communication, the optical communications technology has proven its capability. In a remarkable feat, the laser communications demo successfully transmitted engineering data from over 140 million miles away, which is 1.5 times the distance between Earth and the sun, after interfacing with Psyche's radio frequency transmitter.
The DSOC also successfully interfaced with Psyche’s radio transmitter, allowing it to transmit information and engineering data directly from the spacecraft back to Earth.
NASA’s optical communications demonstration has proven it can transmit test data at a maximum rate of 267 Mbps using the flight laser transceiver’s near-infrared downlink laser, which is similar to broadband internet speeds. However, because the spacecraft is now much farther away, the data transmission rate is lower.
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