Now, one blip does not a solid detection make, and for decades SETI researchers have been excited then disappointed by strange signals that never repeat. If Bhathal produces this data for scrutiny from other scientists, repeatability would still be needed before a detection of extra-terrestrial intelligence could be claimed. So don't get your hopes up just yet.
But still, if habitable planets are fairly common in the galaxy, as the existence of Gliese 581g suggests, that still leaves me with a burning question... Where is everyone?
This question was famously posed over lunch by Enrico Fermi in 1950, thus it is now called the "Fermi Paradox." In a galaxy where habitable planets could have formed as many as 10 billion years ago - Gliese 581g, for example, is approximately 8 billion years old - then where are the civilizations that had a 5 billion year head start on us? Homo sapiens have only been around for 150,000 years, so imagine what they would be like!
If you are skeptical of the scores of UFO and abduction reports, as I am for several reasons, then you are left with three possibilities. One is strangely reminiscent of Star Trek's prime directive, that they are here, but are careful to ensure that we don't know about it. Or, intelligent life has arisen elsewhere, but they don't explore the galaxy, either for lack of trying, because it is too difficult, or because they blow themselves to bits in the process. Or, we truely are the first, or among the first, sentient beings in our galaxy.