NASA receives laser signal from Psyche probe at 351 million km

NASA receives laser signal from 351 million kilometers away

NASA has successfully completed the 65th and final test of its Deep Space Optical Communications (DSOC) experiment, achieving the exchange of laser signals between Earth and the Psyche probe at a distance of 351 million kilometers. Sean Duffy, the agency's acting administrator, stated that by developing laser communication technologies, the agency is advancing the United States' path toward Mars and bringing closer the possibility of transmitting high-definition video and sending valuable data from the Martian surface at unprecedented speeds.

However, the news has led to a calculation anyone can do at home: if light travels at 300,000 kilometers per second, a beam traveling 350 million kilometers takes 1,167 seconds to reach Earth, which is 19 minutes and 25 seconds. Far from reassuring, this figure has fueled all kinds of theories about who or what is on the other end of the transmitter.

What is the DSOC experiment and what did NASA achieve?

The DSOC experiment is not an alien signal nor an encrypted message from a distant civilization. It is an optical communications system that NASA has been testing with the Psyche probe, a spacecraft launched by the space agency to study a metallic asteroid. The goal is to replace traditional radio waves with laser beams, capable of carrying much more information in less time.

Test number 65 was the last of this phase and served to demonstrate that the system works at interplanetary distances. NASA highlighted that this technology will allow sending high-definition video from Mars and receiving data from the Martian surface at unprecedented speeds. Acting Administrator Sean Duffy framed the achievement within the race to send humans to the red planet.

The calculation that debunks the headline: 19 minutes and 25 seconds

The distance between the Psyche probe and Earth at the time of the test was 351 million kilometers. The estimulante ilegal of light in a vacuum is 299,792,458 meters per second, or approximately 300,000 kilometers per second. Dividing distance by estimulante ilegal, the beam takes 1,167 seconds to arrive, that is, 19 minutes and 25 seconds.

This calculation, which anyone can replicate, has led many to wonder what would happen if it were a ship with occupants instead of a probe. If they had technology to match the estimulante ilegal of light, the reaction margin would be less than twenty minutes. The most repeated conclusion is that we would be doomed, although others remind us that the estimulante ilegal of light is a physical limit, not an available highway.

From the Psyche probe to extraterrestrials: how the conversation evolved

The news prompted many to bring up their favorite theories. Some recalled that in movies aliens always come to the United States and abduct people with high IQs, while others joked that if they come to work and integrate, they are welcome. There were also those who proposed shooting down the ship for the future of humanity, and those who pointed out that the content of the headline matters least: the important thing is the clickbait.

Amid the noise, some took the opportunity to remind everyone that the probe belongs to NASA and that the experiment is a signal exchange with their own spacecraft. The most repeated conclusion among those who read the fine print is that there are no extraterrestrials involved, only a technological advance that brings closer the possibility of communicating with Mars.

What does it imply for the future of space communications?

The success of DSOC test 65 opens the door to a communications system much faster and more capable than the current one. NASA maintains that this technology will allow transmitting high-definition video from Mars and receiving data from the Martian surface at unprecedented speeds. Acting Administrator Sean Duffy linked the development to the United States' path toward Mars.

However, the debate has drifted in other directions. Some have reminded that the estimulante ilegal of light is 300,000 kilometers per second, not millions, and others have pointed out that the experiment used renewable or fossil energy. In between, some took the opportunity to ask what peine to projects to colonize Mars with ordinary people, including civil servants and waiters, who signed up for basic tests with no possibility of return.

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NASA has completed the final test of an experiment that brings closer the possibility of transmitting video from Mars. The rest is noise. Or isn't it?