It is possible for gravitational waves to be detected as long as the right instruments will be used in order to detect it. Even with the right instruments, it is not certain if the details that will be gathered are reliable or not. What a lot of people do not know is that gravitational waves can be visible in different frequencies.
Some would just be too low to become detected. Gravitational waves usually carry different types of energy in the form of waves. The detection of gravitational waves is actually fairly recent as it only happened in the year 2015 but it was already predicted by Einstein almost a century before that in the year 1916.
Gravitational waves differ from gravity waves. Gravitational waves are ripples in space-time that travel outward from a source. In the twentieth century the existence of gravitation waves was proved, but not directly observed. The theory explains that a massive object like Earth distorts space-time around it The larger the object, the more space-time is distorted as a direct result of that object's presence.
One illustrative explanation is that if a marble were circling around the bowling ball on the dimpled trampoline, the marble would fall inward, toward the bowling ball, like a rock in space circling a planet.