Can E.T. Have Bugged a Space Rock to Listen In on Earthlings?

Imagine: 100 million years ago, advanced civilization discovered strange life features on the blue-green planet in the Milky Way, not far from home. They try to send a signal, but nothing advances in the unknown world. So the curious Galactic Explorer tried a few different things. They sent robotic probes to a small, quiet space rock surrounding a life-rich planet to keep an eye on things.

If a story like this emerges at any time during Earth’s 4.5 billion years of history, it may have left archeological records. At the very least, this is the hope behind a new proposal that will examine what Earth has called the common orbit for signs of advanced alien technology.

Co-orbit is a space object orbiting the sun, and its distance is about the same as that of the earth. Physicist and independent SETI (search for extraterrestrial intelligence) researcher James Benford said: “They are orbiting the sun at about the same speed as the earth and are close to the earth.” Last year he was at A conference in Houston eavesdropped on Earth through these common orbits. If he’s right, co-orbital motion could be a way to spot extraterrestrial activity that occurred before human evolution, let alone divert attention to stars.

SETI ambitious
To be clear, even SETI researchers who like to check the idea of ​​the Earth’s same orbit admit that this is a long trial.

“It’s obviously extremely unlikely that aliens will be able to detect these same orbits,” said Paul Davies, a physicist and astrobiologist at Arizona State University. On the 20. “But if you spend a little money to see it, why not? Even if we don’t find E.T., we will find something interesting.”

Davis said that when people began to seriously consider how to find extraterrestrial intelligence in the 1950s, they just started listening. Unfortunately, scanning the radio or other alien life for half a century has only produced what Davis calls “creepy silence” in his book of the same name (Horton Miff Lin Harcourt, 2010). Davies told Live Science that recently in the SETI field, there has been interest in “technical signatures” or any non-human-created technology mark in the universe.

The exploration of common rail will be a typical example. Benford says little is known about the same track itself. Found for the first time in 1997, and after 2010 in 15 other known orbits around the earth, most of them circled in weird environments, some of which looked like horseshoes or t as they circle Traveling around the earth. sun. According to NASA, the closest Earth is called “the nearest companion of the Earth”, it is about 38 times from the moon and seems to maintain a stable relationship with the earth, which will last for centuries . Benford said that if coordinated orbits stay on Earth for a long time, they would be ideal places for alien surveillance equipment.

found mistake
The closest star to the earth is the sun, which is 4.37 light years away from the sun. But Benford says that every five million years or so, a star will appear at a distance of about one light year from the earth, which means that in the long history of the earth, hundreds of stars (and its possible The accompanying planets) are close enough to our planet to be connected. For a long time, aliens may have not observed anything more exciting than photosynthetic bacteria or dinosaurs (if lucky). But their detectors can still sit on the same orbital surface.

“This is essentially extraterrestrial archeology I’m talking about,” Benford said.