According to Dr Nathalie Cabrol, who is currently leading the quest for alien life at the Seti Institute in California, an advanced alien civilization may be trying contact Earth at this very moment. But regardless of our best efforts, we could be unaware to their messages because humankind do not yet have the means to pick up the signals. Talking to DailyMail.com, Dr Cabrol said we are trying our best to get closer to finding both microbial life in our solar system and intelligent life elsewhere in the universe. According to her, in our lifetime, we'll find simple alien organisms near to Earth and a copy of our planet in another galaxy. Getting in contact with intelligent life or even finding them, though, may not be as easy, mainly because of our own restricted view of the cosmos. She said “See how much progress we have made in the past 100 years. If there is a civilisation out there that is only 1,000 years older than we are, who knows what type of technology, or what type of process, they’ve put into communicating with others.”
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She added “‘we’re just scratching the surface here. We’re looking at the universe from our own standpoint. We tend to ask questions in the way we do. But what kind of thought process an alien civilization may have, we really don’t know.” At present, the hunt for ET is based on picking up optical and just radio signals. For example, earlier this year, astronomers picked up a sequence of mysterious pulsing signals coming from just outside our solar system. Labelled as Fast Radio Bursts (FRBs), just 10 of these rare signals have been discovered to date. A research earlier this year found that all 10 bursts' scattering measures are multiples of a particular number: 187.5.
The outcomes suggest five sources for the bursts are all at frequently spaced distances from Earth, billions of light-years away.
Michael Hippke of the Institute for Data Analysis in Neukirchen-Vluyn, Germany, said 'This will either be new physics, like a new kind of pulsar, or, in the end, if we can exclude everything else, an ET,”
But according to Dr Cabrol, searching for strange radio signals such is just one of the techniques we may be able to pick up alien life.