Now, astronomers have turned two telescopes on the most promising star – 2MASS 19281982-2640123 – in an attempt to pick up any possible techno-signatures emitting from it.It was in a range of frequencies close to the hydrogen line, which is relatively free from background noise, making it a good range to pick were we to try and communicate with other civilizations ourselves.This type of search wasn't designed to figure out exactly what it is, say if it's from a natural source, but to narrow down the search were it to be from an alien civilization."There remain a significant number of sources that are either Sun-like and/or pass the criteria for having a habitable zone, and future observations could target these in followup of the WOW!"The [original] paper led to Breakthrough Listen's first collaboration between the Green Bank Telescope (site of the first-ever SETI observation by Frank Drake in 1961) and the SETI Institute's Allen Telescope Array (the first radio observatory built especially for SETI observations)," Karen Perez, visiting graduate student at Breakthrough Listen and lead author on the AAS Research Note, said in a statement."