I observed in the sky tonight lights that looked similar to satellites traveling from sw to ne between about 9:30pm and 9:45pm. they were spaced about every 25 to 30 seconds apart except 1 was 2 closely spaced, total of about 30 light sources. my guess some kind of military aircraft at very high altitude because they could not be heard. this occurred in my front yard in startup, wa. let me know if you know what it was. thanks frank hanshew