My Son and U were returning to Maryland from shopping in King George VIrginia and were traveling North on US Route 301. When we got almost to a large farm that sits on southbound side of highway I saw a fairly large ball that appeared to be on fire right above the tree tops to the left of me. It was only visible for a second or two and seemed to curved slightly up before disappearing. It reminded me of the ball of fire from Dragonball Z!