NASA in 2014 announced that discovering life on another planet is within our reach within 20 years. Mark your calendar now
NASA astronomer Kevin Hand suggested that the moon of Jupiter, Europa, could prove to have a form of life.
Now, that’s kind of a rash statement for a scientist to make, since all we know is that Europa has some form of water. Certainly frozen, with a possibly liquid form deep under that icy crust. That is VERY speculative.
Unless you’ve been pointed to that satellite by someone with more advanced technology.
Maybe that 20 years is not the time frame for the technology to be developed (although we will have powerful exoplanet-hunting telescopes on orbit by that time), but a period for humanity to be become accustomed to the idea that we are not alone.