The third observing run (O3) is a period of data collection during which the LIGO and Virgo gravitational wave observatories are actively searching for gravitational wave signals. This particular observing run began in April 2019 and lasted for approximately one year. During O3, scientists are continuing their efforts to detect and study gravitational waves, which are ripples in spacetime caused by the motion of massive objects such as black holes and neutron stars. This data is crucial for furthering our understanding of the universe and the physics of extreme events in space.