Aliens can detect Earth with radio signals

Scientists at the University of Manchester and the University of Mauritius have published a study that suggests aliens on nearby planets. – within ten light-years – can detect Earth leaking radio signals.

World radio signals are currently the second strongest source of radio leaks, second only to military radar transmissions.

The study, published in the Monthly Notices of the Royal Astronomical Society, is only more technologically advanced civilizations can detect Earth’s current levels of radio leaksbut as new technologies and more powerful broadband systems gain, more aliens will be able to detect humans on Earth.

According to Professor Mike Garrett, director and project team leader of the Jodrell Bank Center for Astrophysics at the University of Manchester, although the Earth has been said to have become increasingly radio quiet in recent years – it’s true that we have less powerful TV. and today’s radio transmitters —, The proliferation of mobile communication systems around the world is profound. Although each system individually represents relatively low radio powers, the billions of integrated spectrums of these devices are significant.

According to current estimates, before the end of the decade we will have more than 100,000 satellites in low earth orbit and beyond. Earth is already unusually bright in the radio part of the spectrum. If the trend continues, we could become easily detectable by any advanced civilization with the right technology.

This research demonstrates the importance of considering the possibility of other civilizations in the universe and the need to be alert to possible extraterrestrial threats. It also underlines the importance of sustainable technologies that are aware of the existence of other possible life forms in the universe.

The research team is now interested in expanding their search to include other contributors to Earth’s radio leak, such as powerful civilian and military radars, new digital transmission systems, Wi-Fi networks, individual cell phones, and constellations of currently launching satellites. low earth orbit.