It was a clear day, no clouds no planes not even any birds. i was walking through the town and when i looked up i noticed roughly eleven silver cylinders gliding across the sky. they wernt making a sound just slowly making their way across the sky. they were cylinder shaped and they were silver, they glistened from the sun. they were closer than planes and had no details on them just plain cylinder shape. they also left a white smoke trail behind them as they moved. three of them went one way and four of them went the other way they seemed to pass each other as if they were in formation.