The document discusses meteor showers, specifically the Perseid meteor shower. It defines key terms like meteoroid, meteor, meteor shower, and radiant point. It provides details on the Perseid meteor shower such as its peak date in August, originating comet Swift-Tuttle, and expected rates of over 60 meteors per hour at peak. It also provides instructions on how to calculate the Zenithal Hourly Rate to estimate meteor shower rates.