They were moving to fast not to make a shock wave soundI was looking at the sky in a west to north direction and saw 2 lights going from south to north moving at a rapid speed. the most western light seemed to twist in a northern direction ubtil they dissapeared from my sight. There was no noise and the lights seemed to be less then 2 miles high. They seemed to be going at mock 3. There was no noise. I thought it was a little strange but dismissed it at first as a trick of light when the lights seemed to twist. Less then 10 minutes later 2 lights came from north to south going at more then mock 6 but like before there was no noise. Then I was sure that what I was looking at and seeing was not normal. I don't want to speculate other then to say that was not any kind of technolory I've ever seen or heard of. Wheather it is our tech or someone elses I dare not speculate.