Hovering then slowly moving black object silhouetted by grey clouds over Seattle, WA (videotaped).On Mother's Day, we were eating our dinner on our deck on an overcast day. I notice a stationary back dot in the sky above Providence Hospital with grey clouds for a background. I told my wife, and she spotted it with my help. After watching it for a while, I decided to run inside and get my old video camera. I videotaped it with my elbows braced on the deck so I could show it's movement. At about the time I started filming it, it started drifting(?) to the east on a horizontal plain. At one point I tried to zoom out to get some scale and perspective, but lost it when I tried to zoom back in.After viewing the video on my big screen, you can see an object arching beneath the main object. It's hard to describe. Though even on the big screen the main object looks like a shapeless black object.I showed it to a bunch of friends last night, and they insisted the I have a expert look at the video. Hence this contact. I have yet to transfer the video to a digital form. My firewire card is not working.My background: I love physics and astronomy, and so I have a hard time believing we are being visited by other life forms....sorry. But I do believe in the term UFO. I was in Phoenix when the "Phoenix Lights" occurred, and I witnessed them from an overpass (Dunlap & I-17). I still believe they were government related. This may too be the case.