A decade is only 10 years. It is highly unlikely that even microbial life of extraterrestrial origin will be identified by 2028. Our best chance of finding life comes from two realms. Within our own solar system on the moons of Jupiter and Saturn, and from space from the SETI program (Search for extraterrestrial intelligence), which listens for radio signals from other planets. With the exception of the still controversial “Wow!” signal, SETI has been operational for over 40 years and still has not found definitive evidence of life in space.
The Wow! signal was a strong narrow band radio signal that was heard in the 1970’s by Ohio State University’s “Big Ear” telescope. The signal was observed for 72 seconds until the rotation of the Earth pointed the telescope in a new direction. The signal has been studied ever since, but to date no signal from that direction (or any other signal) has ever been detected. The origin and nature of that signal is still debated and without additional scientifically gathered data can neither support or not support the idea of extraterrestrial intelligence.